Segment Solar Solar Panels

135 models from US · 340W–440W · Avg. 19.5% efficiency

135

Models

19.5%

Avg Efficiency

$2.44

Avg $/Watt

340W–440W

Wattage Range

Segment Solar SG Series

ModelWattageEfficiencyCell Type$/WWarranty
SG 440W D440W21.2%PERC$2.8830 years
SG 435W C All-Black435W21%N-Type TOPCon$2.8330 years
SG 430W E Pro430W20.8%N-Type TOPCon$2.7830 years
SG 425W B BF425W20.7%PERC$2.7530 years
SG 420W D Plus420W20.5%PERC$2.7030 years
SG 420W A HC420W20.5%N-Type TOPCon$2.7030 years
SG 415W A Ultra415W20.3%PERC$2.6525 years
SG 415W C415W20.3%N-Type TOPCon$2.6530 years
SG 415W D Silver415W20.3%N-Type TOPCon$2.6530 years
SG 415W E HD415W20.3%PERC$2.6530 years
SG 410W E Max410W20.2%N-Type TOPCon$2.6225 years
SG 410W B All-Black410W20.2%PERC$2.6230 years
SG 405W B Silver405W20%N-Type TOPCon$2.5825 years
SG 405W D Pro405W20%PERC$2.5825 years
SG 400W E HC400W19.8%PERC$2.5325 years
SG 400W A BF400W19.8%N-Type TOPCon$2.5325 years
SG 400W C Black400W19.8%PERC$2.5330 years
SG 395W A Black395W19.7%PERC$2.5025 years
SG 395W C Plus395W19.7%N-Type TOPCon$2.5025 years
SG-39 HC390W19.5%PERC$2.4525 years
SG 390W E Ultra390W19.5%N-Type TOPCon$2.4525 years
SG 390W A All-Black390W19.5%N-Type TOPCon$2.4525 years
SG 390W B390W19.5%PERC$2.4525 years
SG 390W D HD390W19.5%N-Type TOPCon$2.4525 years
SG 390W B Ultra390W19.5%N-Type TOPCon$2.4530 years
SG-38 HD385W19.3%N-Type TOPCon$2.4025 years
SG 385W D Max385W19.3%PERC$2.4025 years
SG 380-B Silver380W19.2%PERC$2.3825 years
SG 380W C Pro380W19.2%N-Type TOPCon$2.3825 years
SG 380W C Silver380W19.2%PERC$2.3825 years
SG 380W A Max380W19.2%PERC$2.3830 years
SG 375W B Plus375W19%PERC$2.3325 years
SG 375W E BF375W19%PERC$2.3325 years
SG 370-A Black370W18.8%N-Type TOPCon$2.2825 years
SG 365-D Max365W18.7%N-Type TOPCon$2.2525 years
SG 365-E Ultra365W18.7%PERC$2.2525 years
SG 365W A365W18.7%N-Type TOPCon$2.2525 years
SG 365W D HC365W18.7%N-Type TOPCon$2.2525 years
SG 365W B Black365W18.7%N-Type TOPCon$2.2525 years
SG 355W Pro355W18.3%PERC$2.1525 years
SG-35 All-Black355W18.3%PERC$2.1525 years
SG 355W C HD355W18.3%PERC$2.1525 years
SG 340W340W17.8%PERC$2.0325 years
SG 340W Plus340W17.8%N-Type TOPCon$2.0325 years
SG-34 BF340W17.8%N-Type TOPCon$2.0325 years

Segment Solar SG Plus Series

ModelWattageEfficiencyCell Type$/WWarranty
SG Plus 440W D440W21.2%PERC$2.8830 years
SG Plus 435W C All-Black435W21%N-Type TOPCon$2.8330 years
SG Plus 430W E Pro430W20.8%N-Type TOPCon$2.7830 years
SG Plus 425W B BF425W20.7%PERC$2.7530 years
SG Plus 420W D Plus420W20.5%PERC$2.7030 years
SG Plus 420W A HC420W20.5%N-Type TOPCon$2.7030 years
SG Plus 415W A Ultra415W20.3%PERC$2.6525 years
SG Plus 415W C415W20.3%N-Type TOPCon$2.6530 years
SG Plus 415W D Silver415W20.3%N-Type TOPCon$2.6530 years
SG Plus 415W E HD415W20.3%PERC$2.6530 years
SG Plus 410W E Max410W20.2%N-Type TOPCon$2.6225 years
SG Plus 410W B All-Black410W20.2%PERC$2.6230 years
SG Plus 405W B Silver405W20%N-Type TOPCon$2.5825 years
SG Plus 405W D Pro405W20%PERC$2.5825 years
SG Plus 400W E HC400W19.8%PERC$2.5325 years
SG Plus 400W A BF400W19.8%N-Type TOPCon$2.5325 years
SG Plus 400W C Black400W19.8%PERC$2.5330 years
SG Plus 395W A Black395W19.7%PERC$2.5025 years
SG Plus 395W C Plus395W19.7%N-Type TOPCon$2.5025 years
SG Plus-39 HC390W19.5%PERC$2.4525 years
SG Plus 390W E Ultra390W19.5%N-Type TOPCon$2.4525 years
SG Plus 390W A All-Black390W19.5%N-Type TOPCon$2.4525 years
SG Plus 390W B390W19.5%PERC$2.4525 years
SG Plus 390W D HD390W19.5%N-Type TOPCon$2.4525 years
SG Plus 390W B Ultra390W19.5%N-Type TOPCon$2.4530 years
SG Plus-38 HD385W19.3%N-Type TOPCon$2.4025 years
SG Plus 385W D Max385W19.3%PERC$2.4025 years
SG Plus 380-B Silver380W19.2%PERC$2.3825 years
SG Plus 380W C Pro380W19.2%N-Type TOPCon$2.3825 years
SG Plus 380W C Silver380W19.2%PERC$2.3825 years
SG Plus 380W A Max380W19.2%PERC$2.3830 years
SG Plus 375W B Plus375W19%PERC$2.3325 years
SG Plus 375W E BF375W19%PERC$2.3325 years
SG Plus 370-A Black370W18.8%N-Type TOPCon$2.2825 years
SG Plus 365-D Max365W18.7%N-Type TOPCon$2.2525 years
SG Plus 365-E Ultra365W18.7%PERC$2.2525 years
SG Plus 365W A365W18.7%N-Type TOPCon$2.2525 years
SG Plus 365W D HC365W18.7%N-Type TOPCon$2.2525 years
SG Plus 365W B Black365W18.7%N-Type TOPCon$2.2525 years
SG Plus 355W Pro355W18.3%PERC$2.1525 years
SG Plus-35 All-Black355W18.3%PERC$2.1525 years
SG Plus 355W C HD355W18.3%PERC$2.1525 years
SG Plus 340W340W17.8%PERC$2.0325 years
SG Plus 340W Plus340W17.8%N-Type TOPCon$2.0325 years
SG Plus-34 BF340W17.8%N-Type TOPCon$2.0325 years

Segment Solar SG Max Series

ModelWattageEfficiencyCell Type$/WWarranty
SG Max 440W D440W21.2%PERC$2.8830 years
SG Max 435W C All-Black435W21%N-Type TOPCon$2.8330 years
SG Max 430W E Pro430W20.8%N-Type TOPCon$2.7830 years
SG Max 425W B BF425W20.7%PERC$2.7530 years
SG Max 420W D Plus420W20.5%PERC$2.7030 years
SG Max 420W A HC420W20.5%N-Type TOPCon$2.7030 years
SG Max 415W A Ultra415W20.3%PERC$2.6525 years
SG Max 415W C415W20.3%N-Type TOPCon$2.6530 years
SG Max 415W D Silver415W20.3%N-Type TOPCon$2.6530 years
SG Max 415W E HD415W20.3%PERC$2.6530 years
SG Max 410W E Max410W20.2%N-Type TOPCon$2.6225 years
SG Max 410W B All-Black410W20.2%PERC$2.6230 years
SG Max 405W B Silver405W20%N-Type TOPCon$2.5825 years
SG Max 405W D Pro405W20%PERC$2.5825 years
SG Max 400W E HC400W19.8%PERC$2.5325 years
SG Max 400W A BF400W19.8%N-Type TOPCon$2.5325 years
SG Max 400W C Black400W19.8%PERC$2.5330 years
SG Max 395W A Black395W19.7%PERC$2.5025 years
SG Max 395W C Plus395W19.7%N-Type TOPCon$2.5025 years
SG Max-39 HC390W19.5%PERC$2.4525 years
SG Max 390W E Ultra390W19.5%N-Type TOPCon$2.4525 years
SG Max 390W A All-Black390W19.5%N-Type TOPCon$2.4525 years
SG Max 390W B390W19.5%PERC$2.4525 years
SG Max 390W D HD390W19.5%N-Type TOPCon$2.4525 years
SG Max 390W B Ultra390W19.5%N-Type TOPCon$2.4530 years
SG Max-38 HD385W19.3%N-Type TOPCon$2.4025 years
SG Max 385W D Max385W19.3%PERC$2.4025 years
SG Max 380-B Silver380W19.2%PERC$2.3825 years
SG Max 380W C Pro380W19.2%N-Type TOPCon$2.3825 years
SG Max 380W C Silver380W19.2%PERC$2.3825 years
SG Max 380W A Max380W19.2%PERC$2.3830 years
SG Max 375W B Plus375W19%PERC$2.3325 years
SG Max 375W E BF375W19%PERC$2.3325 years
SG Max 370-A Black370W18.8%N-Type TOPCon$2.2825 years
SG Max 365-D Max365W18.7%N-Type TOPCon$2.2525 years
SG Max 365-E Ultra365W18.7%PERC$2.2525 years
SG Max 365W A365W18.7%N-Type TOPCon$2.2525 years
SG Max 365W D HC365W18.7%N-Type TOPCon$2.2525 years
SG Max 365W B Black365W18.7%N-Type TOPCon$2.2525 years
SG Max 355W Pro355W18.3%PERC$2.1525 years
SG Max-35 All-Black355W18.3%PERC$2.1525 years
SG Max 355W C HD355W18.3%PERC$2.1525 years
SG Max 340W340W17.8%PERC$2.0325 years
SG Max 340W Plus340W17.8%N-Type TOPCon$2.0325 years
SG Max-34 BF340W17.8%N-Type TOPCon$2.0325 years

Written & reviewed by

Jeremy Wolfe — Senior Solar Energy Analyst

Jeremy Wolfe is a solar energy analyst specializing in residential photovoltaic economics, federal and state incentive policy, and return-on-investment modeling for homeowners. He leads EnergyTools' solar research program and methodology.

  • 10+ years analyzing residential solar economics and payback modeling
  • Lead researcher for EnergyTools' 50-state solar cost-per-watt database
  • Author of 100+ solar ROI, payback, and incentive analyses

Methodology & data sources:NREL PVWatts, EPA FuelEconomy.gov, state utility commissions— updated 2026.