Segment Solar Solar Panels

33 models from US · 340W–440W · Avg. 19.7% efficiency

33

Models

19.7%

Avg Efficiency

$2.49

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 A HC420W20.5%N-Type TOPCon$2.7030 years
SG 420W D Plus420W20.5%PERC$2.7030 years
SG 415W C415W20.3%N-Type TOPCon$2.6530 years
SG 415W E HD415W20.3%PERC$2.6530 years
SG 415W A Ultra415W20.3%PERC$2.6525 years
SG 410W E Max410W20.2%N-Type TOPCon$2.6225 years
SG 410W B All-Black410W20.2%PERC$2.6230 years
SG 405W D Pro405W20%PERC$2.5825 years
SG 405W B Silver405W20%N-Type TOPCon$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 C Plus395W19.7%N-Type TOPCon$2.5025 years
SG 395W A Black395W19.7%PERC$2.5025 years
SG-39 HC390W19.5%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 380W C Pro380W19.2%N-Type TOPCon$2.3825 years
SG 380W A Max380W19.2%PERC$2.3830 years
SG 380-B Silver380W19.2%PERC$2.3825 years
SG 375W E BF375W19%PERC$2.3325 years
SG 370-A Black370W18.8%N-Type TOPCon$2.2825 years
SG 365W A365W18.7%N-Type TOPCon$2.2525 years
SG 365-E Ultra365W18.7%PERC$2.2525 years
SG 355W Pro355W18.3%PERC$2.1525 years
SG 340W340W17.8%PERC$2.0325 years
SG-34 BF340W17.8%N-Type TOPCon$2.0325 years

Written & reviewed by

EnergyTools Research Team — Solar Energy Research Group

The EnergyTools Research Team compiles and verifies residential solar data from NREL, EPA, and state utility commissions. Methodology is reviewed quarterly.

  • Source data: NREL PVWatts V8 + Utility Rates V3 APIs
  • Source data: EPA FuelEconomy.gov vehicle efficiency data
  • Methodology reviewed quarterly

Methodology & data sources:NREL PVWatts, EIA, state utility commissions· Updated 2026.