Product description:
Portable Handheld Slit Lamp
Magnification 6X
Slit Length =12mm
Slit Width (min) 0~12mm continuously adjustable
Filter Cobalt blue filter
Power Li-ion battery 3.7V/3400mAh
Illumination LED bulb 3V/1W
Working Time More than 6 hours
Recharging Time 3.5 hours
Net Weigh 240 g (including battery)