•Technical Parameters: 500 head
•Luminance ：120,000Lux
•Color temperature ：4300K±500K
•Spot diameter ：12 0- 320mm
•lllumination depth ：≥800mm
•Light-adjusting mode ：Eight grade dimmer system
•Temperature at surgeon’s head ：≤2℃
•Temperture at surgical field : ≤8℃
•Color indication index ：≥97%
•Working distance: 55-170cm
•Vertical adjustment range: 115cm
•Power supply ：220V±22V 50Hz±1Hz
•Input power ：220W
•Power of bulb (W) ：24V/150W
•Bulb average life : 1000h
•Shift of major and stand-by lamps ：YES
•Lowest height of installation ：2900mm
•Standard height of installation : 275-310cm