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