KJ6B Rechargeable Streak Retinoscope is the first model which can be recharged with internal Li-ion battery in China, and last 2 hours after fully recharged.
Parameters:
Working distance:1m
Adjustable range of streak:3mm-20mm
Streak Rotation:360℃
IIIumination source:3V/2.1W halogen bulb
Power:AC220V/50Hz 110V/60Hz
Battery:Li-ion battery