Solar Car Keychain Size: 53× 30× 21mm Weight: 15g 2 LEDs Poweful Brightness 10000MCD Powered by Amorphous solar panel 2.5V/7mA with built- in battery 40mAh Material: Plastic ABS Switch: On/Off on the top Color: Red/black/silver (the color is subject to stock when shipping) Charging time: Full 5 hours in sun Illuminating: 2 hours lighting time