This high quality and durable solar panel was designed to produce the desired power output to power the Dr. FuelCell Reversible Fuel Cell #KO348E. This unit was originally part of the “Alternative Energy Kit” used with older PLTW sets incorporating fischertechnik. It can be used as stand-alone unit, but users must be sure it meets their specific technical requirements. Please review the specifications in detail to determine if this is right for your project.
Specifications 
Operating and storage temperature: 10 – 65 °C (50 – 149°F)
Length / Width / Height: 52mm x 70mm x 30mm (2.04” x 2.8” x 5.11”)
Weight: 60g
With incident power of 1000 w/m2 at 25 °C (77 °F):
Open circuit voltage: 2.8 V
Short circuit current: 250 mA
Operating current: 200 mA (with 10 Ω load)
Operating voltage: 1.4 – 1.6 V
Operating power: 280 mW

If you have any questions, or concerns feel free to contact me. have a nice day