LED Bicycle light:
--led:1 led
--battery:3*CR2032
--material:PS

Bicycle light:

--led:1 led
--battery:3*CR2032
--material:PS

--size:2.9X2.9X2.8 CM

--the white light use 2 batteries and install on the front of bicycle,the red light use 1 battery and install on the back of bicycle.

--it can install on bicycle,it's very conveniently  when bicyling at night.