1. Solar panel
voltage :5v
Electricity:200mA
Power:1W
Battery
LI-ion battery :3.7v 1000mAh (with line protection to avoid full discharged and over charged )
2.LED
(1)lighting Chy-tech
Lumen:30MLpc
color temperature : 6000-6500 k (pure white )
(2)backlight
color :red ,green ,blue
(3)charge time :
by USB:3-4 hours
by solar panel:6-7hours (standards for the light is greater than or equal to 38000lux ).