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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProductWarrantyAccrual" xlink:label="loc_us-gaap_ProductWarrantyAccrual_7386E6E7E024D3960A4330937A60173B" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ProductWarrantyAccrualNoncurrent_1E3E00CD5339C1BB8A6B30937A60CA6B_label_en-US" xlink:label="lab_us-gaap_ProductWarrantyAccrualNoncurrent_1E3E00CD5339C1BB8A6B30937A60CA6B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Product Warranty Accrual, Noncurrent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProductWarrantyAccrualNoncurrent" xlink:label="loc_us-gaap_ProductWarrantyAccrualNoncurrent_1E3E00CD5339C1BB8A6B30937A60CA6B" xlink:type="locator" />
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    <link:label id="lab_us-gaap_InventoryNet_B8414321C2D47E10BB4E3F0616D0CFCB_label_en-US" xlink:label="lab_us-gaap_InventoryNet_B8414321C2D47E10BB4E3F0616D0CFCB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Inventory, Net</link:label>
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    <link:label id="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_CC39BE099F53D89F742E3F0616D07B7D_verboseLabel_en-US" xlink:label="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_CC39BE099F53D89F742E3F0616D07B7D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Prepaid expenses and other assets</link:label>
    <link:label id="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_CC39BE099F53D89F742E3F0616D07B7D_label_en-US" xlink:label="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_CC39BE099F53D89F742E3F0616D07B7D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Prepaid Expense and Other Assets, Current</link:label>
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    <link:label id="lab_us-gaap_AssetsCurrent_BC131D2A2510C7E02D903F0616D1055F_totalLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrent_BC131D2A2510C7E02D903F0616D1055F" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total current assets</link:label>
    <link:label id="lab_us-gaap_AssetsCurrent_BC131D2A2510C7E02D903F0616D1055F_label_en-US" xlink:label="lab_us-gaap_AssetsCurrent_BC131D2A2510C7E02D903F0616D1055F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets, Current</link:label>
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    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_384B1EECD14E70B350D53F0616D18A88_verboseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_384B1EECD14E70B350D53F0616D18A88" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Property and equipment, net</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_384B1EECD14E70B350D53F0616D18A88_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_384B1EECD14E70B350D53F0616D18A88" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment, Net</link:label>
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    <link:label id="lab_us-gaap_Goodwill_C1EE9DF86B5D3CB912083F0616D1C183_label_en-US" xlink:label="lab_us-gaap_Goodwill_C1EE9DF86B5D3CB912083F0616D1C183" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
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    <link:label id="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill_E03818FD71FE1386CFA13F0616D11E61_terseLabel_en-US" xlink:label="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill_E03818FD71FE1386CFA13F0616D11E61" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Intangibles, net</link:label>
    <link:label id="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill_E03818FD71FE1386CFA13F0616D11E61_label_en-US" xlink:label="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill_E03818FD71FE1386CFA13F0616D11E61" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Intangible Assets, Net (Excluding Goodwill)</link:label>
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    <link:label id="lab_us-gaap_OtherAssetsNoncurrent_8F3064122C50398FCB1E3F0616D14823_label_en-US" xlink:label="lab_us-gaap_OtherAssetsNoncurrent_8F3064122C50398FCB1E3F0616D14823" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Assets, Noncurrent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_8F3064122C50398FCB1E3F0616D14823" xlink:type="locator" />
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    <link:label id="lab_us-gaap_Assets_44F845AD737AB4F804EA3F0616D1BA95_totalLabel_en-US" xlink:label="lab_us-gaap_Assets_44F845AD737AB4F804EA3F0616D1BA95" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total assets</link:label>
    <link:label id="lab_us-gaap_Assets_44F845AD737AB4F804EA3F0616D1BA95_label_en-US" xlink:label="lab_us-gaap_Assets_44F845AD737AB4F804EA3F0616D1BA95" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_44F845AD737AB4F804EA3F0616D1BA95" xlink:type="locator" />
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    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_084A65E9A6DA46D4CA803F0616D126DB_verboseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_084A65E9A6DA46D4CA803F0616D126DB" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">LIABILITIES AND STOCKHOLDERS&#8217; EQUITY</link:label>
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_084A65E9A6DA46D4CA803F0616D126DB_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_084A65E9A6DA46D4CA803F0616D126DB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities and Equity [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_084A65E9A6DA46D4CA803F0616D126DB" xlink:type="locator" />
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    <link:label id="lab_us-gaap_LiabilitiesCurrentAbstract_7A601A10EC45CD48110A3F0616D154FB_verboseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrentAbstract_7A601A10EC45CD48110A3F0616D154FB" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Current liabilities:</link:label>
    <link:label id="lab_us-gaap_LiabilitiesCurrentAbstract_7A601A10EC45CD48110A3F0616D154FB_label_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrentAbstract_7A601A10EC45CD48110A3F0616D154FB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities, Current [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_7A601A10EC45CD48110A3F0616D154FB" xlink:type="locator" />
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    <link:label id="lab_us-gaap_AccountsPayableCurrent_B71B6AE99047ED41F0953F0616D19A1D_verboseLabel_en-US" xlink:label="lab_us-gaap_AccountsPayableCurrent_B71B6AE99047ED41F0953F0616D19A1D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Accounts payable</link:label>
    <link:label id="lab_us-gaap_AccountsPayableCurrent_B71B6AE99047ED41F0953F0616D19A1D_label_en-US" xlink:label="lab_us-gaap_AccountsPayableCurrent_B71B6AE99047ED41F0953F0616D19A1D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounts Payable, Current</link:label>
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    <link:label id="lab_us-gaap_AccruedLiabilitiesCurrent_548E6ADEA13A9474392D3F0616D104C0_label_en-US" xlink:label="lab_us-gaap_AccruedLiabilitiesCurrent_548E6ADEA13A9474392D3F0616D104C0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrued Liabilities, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_548E6ADEA13A9474392D3F0616D104C0" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DeferredRevenueCurrent_8E1F09D39712CC39D8E53F0616D19626_label_en-US" xlink:label="lab_us-gaap_DeferredRevenueCurrent_8E1F09D39712CC39D8E53F0616D19626" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Revenue, Current</link:label>
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    <link:label id="lab_us-gaap_LiabilitiesCurrent_78B208DDCD8501B9862B3F0616D1260F_label_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent_78B208DDCD8501B9862B3F0616D1260F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities, Current</link:label>
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    <link:label id="lab_us-gaap_ProvisionForDoubtfulAccounts_6DE518B5F3BF2836FFBD4F3F0E36A9D9_label_en-US" xlink:label="lab_us-gaap_ProvisionForDoubtfulAccounts_6DE518B5F3BF2836FFBD4F3F0E36A9D9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Provision for Doubtful Accounts</link:label>
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    <link:label id="lab_us-gaap_AmortizationOfFinancingCostsAndDiscounts_6E4963866450C0FBEFA14F3F0E3624D3_verboseLabel_en-US" xlink:label="lab_us-gaap_AmortizationOfFinancingCostsAndDiscounts_6E4963866450C0FBEFA14F3F0E3624D3" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Non-cash interest expense</link:label>
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    <link:label id="lab_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_95812E45B93BBB3458D2309379A1B234_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_95812E45B93BBB3458D2309379A1B234" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Basis spread on variable rate</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage" xlink:label="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_A93E026981793CEDB59630ABDE8294A5" xlink:type="locator" />
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    <link:label id="lab_enph_AmountOfLiquidityRequiredForDebtCompliance_B158554D627E46E4ACD2309379A104E8_label_en-US" xlink:label="lab_enph_AmountOfLiquidityRequiredForDebtCompliance_B158554D627E46E4ACD2309379A104E8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amount of Liquidity Required for Debt Compliance</link:label>
    <link:label id="lab_enph_AmountOfLiquidityRequiredForDebtCompliance_B158554D627E46E4ACD2309379A104E8_documentation_en-US" xlink:label="lab_enph_AmountOfLiquidityRequiredForDebtCompliance_B158554D627E46E4ACD2309379A104E8" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount of Liquidity Required for Debt Compliance</link:label>
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    <link:label id="lab_enph_AmountOfUndrawnCreditForDebtCompliance_0686AC45A102037CCA95309379A1A540_label_en-US" xlink:label="lab_enph_AmountOfUndrawnCreditForDebtCompliance_0686AC45A102037CCA95309379A1A540" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amount of Undrawn Credit for Debt Compliance</link:label>
    <link:label id="lab_enph_AmountOfUndrawnCreditForDebtCompliance_0686AC45A102037CCA95309379A1A540_documentation_en-US" xlink:label="lab_enph_AmountOfUndrawnCreditForDebtCompliance_0686AC45A102037CCA95309379A1A540" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount of Undrawn Credit for Debt Compliance</link:label>
    <link:loc xlink:href="enph-20160331.xsd#enph_AmountOfUndrawnCreditForDebtCompliance" xlink:label="loc_enph_AmountOfUndrawnCreditForDebtCompliance_0686AC45A102037CCA95309379A1A540" xlink:type="locator" />
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    <link:label id="lab_us-gaap_LinesOfCreditCurrent_0B4136E3BF90DD9CFCB4309379A1C595_verboseLabel_en-US" xlink:label="lab_us-gaap_LinesOfCreditCurrent_0B4136E3BF90DD9CFCB4309379A1C595" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Outstanding borrowings</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LinesOfCreditCurrent" xlink:label="loc_us-gaap_LinesOfCreditCurrent_0B4136E3BF90DD9CFCB4309379A1C595" xlink:type="locator" />
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    <link:label id="lab_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_C3F2E3CEAEFBB6F7526B309379A1134E_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_C3F2E3CEAEFBB6F7526B309379A1134E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Remaining borrowing capacity</link:label>
    <link:label id="lab_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_C3F2E3CEAEFBB6F7526B309379A1134E_label_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_C3F2E3CEAEFBB6F7526B309379A1134E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Line of Credit Facility, Remaining Borrowing Capacity</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_C3F2E3CEAEFBB6F7526B309379A1134E" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DebtWeightedAverageInterestRate_DD7A6E4601497374AC3E30ABDFAE6129_terseLabel_en-US" xlink:label="lab_us-gaap_DebtWeightedAverageInterestRate_DD7A6E4601497374AC3E30ABDFAE6129" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average interest rate</link:label>
    <link:label id="lab_us-gaap_DebtWeightedAverageInterestRate_DD7A6E4601497374AC3E30ABDFAE6129_label_en-US" xlink:label="lab_us-gaap_DebtWeightedAverageInterestRate_DD7A6E4601497374AC3E30ABDFAE6129" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt, Weighted Average Interest Rate</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtWeightedAverageInterestRate" xlink:label="loc_us-gaap_DebtWeightedAverageInterestRate_DD7A6E4601497374AC3E30ABDFAE6129" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ScheduleOfInventoryCurrentTableTextBlock_9C65C351029057799F6C670201120894_verboseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfInventoryCurrentTableTextBlock_0DD87AE11A525106B04BDC7ABDF58E28" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Summary of Inventory</link:label>
    <link:label id="lab_us-gaap_ScheduleOfInventoryCurrentTableTextBlock_9C65C351029057799F6C670201120894_label_en-US" xlink:label="lab_us-gaap_ScheduleOfInventoryCurrentTableTextBlock_0DD87AE11A525106B04BDC7ABDF58E28" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Inventory, Current [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfInventoryCurrentTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfInventoryCurrentTableTextBlock_0DD87AE11A525106B04BDC7ABDF58E28" xlink:type="locator" />
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    <link:label id="lab_us-gaap_GoodwillGross_C25E3BA5F17209BF7E777776E7E438BD_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillGross_C25E3BA5F17209BF7E777776E7E438BD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goodwill, gross</link:label>
    <link:label id="lab_us-gaap_GoodwillGross_C25E3BA5F17209BF7E777776E7E438BD_label_en-US" xlink:label="lab_us-gaap_GoodwillGross_C25E3BA5F17209BF7E777776E7E438BD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill, Gross</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GoodwillGross" xlink:label="loc_us-gaap_GoodwillGross_C25E3BA5F17209BF7E777776E7E438BD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillGross_C25E3BA5F17209BF7E777776E7E438BD" xlink:to="lab_us-gaap_GoodwillGross_C25E3BA5F17209BF7E777776E7E438BD" xlink:type="arc" />
    <link:label id="lab_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_78AFA55E4426C8913C937776E7E42638_terseLabel_en-US" xlink:label="lab_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_78AFA55E4426C8913C937776E7E42638" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other indefinite-lived intangibles</link:label>
    <link:label id="lab_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_78AFA55E4426C8913C937776E7E42638_label_en-US" xlink:label="lab_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_78AFA55E4426C8913C937776E7E42638" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Indefinite-Lived Intangible Assets (Excluding Goodwill)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_78AFA55E4426C8913C937776E7E42638" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_78AFA55E4426C8913C937776E7E42638" xlink:to="lab_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_78AFA55E4426C8913C937776E7E42638" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_6274832D27E81B18CCCF7776E7E4A0DA_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_6274832D27E81B18CCCF7776E7E4A0DA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Intangible assets with finite lives:</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_6274832D27E81B18CCCF7776E7E4A0DA_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_6274832D27E81B18CCCF7776E7E4A0DA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets, Net [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNetAbstract" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_6274832D27E81B18CCCF7776E7E4A0DA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_6274832D27E81B18CCCF7776E7E4A0DA" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_6274832D27E81B18CCCF7776E7E4A0DA" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsGross_347B6DB53FF7352FF8367776E7E455CD_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsGross_347B6DB53FF7352FF8367776E7E455CD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Intangibles assets with finite lives, gross</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsGross_347B6DB53FF7352FF8367776E7E455CD_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsGross_347B6DB53FF7352FF8367776E7E455CD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets, Gross</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_347B6DB53FF7352FF8367776E7E455CD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsGross_347B6DB53FF7352FF8367776E7E455CD" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsGross_347B6DB53FF7352FF8367776E7E455CD" xlink:type="arc" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_068B4E7B19DF605E78077776E7E4FBF0" xlink:type="locator" />
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    <link:label id="lab_enph_DocumentAndEntityInformationAbstract_13F7F0EBAD1974995B8A6702018598D7_label_en-US" xlink:label="lab_enph_DocumentAndEntityInformationAbstract_D962BEE3E7315E0798E7F9C45651BDE3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document and Entity Information [Abstract]</link:label>
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    <link:label id="lab_dei_EntityRegistrantName_FBCB99074B84186C205267020185E500_terseLabel_en-US" xlink:label="lab_dei_EntityRegistrantName_80C865E4792659258056E581CDE0A4AC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Registrant Name</link:label>
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