<br> <b>Specification:</b><br> Material: Polysilicon<br> Thickness: 3mm<br> Size: 2.55 x 2.16 inch<br> Packaging: PCB & Glue<br> Working Voltage: 3V<br> Working Current: 150mA<br> Power: 0.45W<br> Conversation Rate: 18%<br> Working Tempertaure: -10~60 ℃<br> Solar Testing standard ( Light intensity: 40000lux，Temperature: 25℃ )<br> <br> <b>Package included: </b><br> 5 x Solar Panel<br> <br><b>Battery Matching Specs:</b><br> Battery —— Voltage of Solar Panel<br> 1.2V —— 2~2.5V<br> 2.4V —— 3.5~4V<br> 3.6V —— 5~6V<br> 6V —— 7.5~9V<br> 12V —— 15~18V<br> <br> <b>Note: You should use them with a diode to prevent them from draining your battery/supercap at night.</b><br>