Treedix 5V 2W with USB Attached Polysilicon Solar Panel Glue Solar Cell Battery Charger DIY Solar Product Mini Small Solar Panel Module Kit Polycrystalline Silicon Encapsulated in Waterproof Resin

Specification: Material: Polysilicon Thickness: 3mm Size: 5.59 x 3.46 inch Packaging: PCB & Glue Working Voltage: 5V Working Current: 400mA Power: 2W Conversation Rate: 18% Working Tempertaure: -10 ~ 60 ? Solar Testing standard ( Light intensity: 40000lux?Temperature: 25? ) Package included: 1 x Solar Panel with 30cm USB attached Battery Matching Specs: Battery —— Voltage of Solar Panel 1.2V —— 2~2.5V 2.4V —— 3.5~4V 3.6V —— 5~6V 6V —— 7.5~9V 12V —— 15~18V Note: You should use them with a diode to prevent them from draining your battery/supercap at night.