Features:
Magnification:2.5X/3.5X
Working distance:500mm
Depth of field: 80mm
Field of View:60mm
LED Bulb:3W/5W
Illumination:15000-40,000Lux
Life time of bulb:10000 h
Battery:Re-chargeable Li-ion Battery
Brightness:Can adjust
Input Voltage:AC100-240V / 50-60HZ