... .8,Brightness automatic memory, do not need to adjust again and again.9,Low noise fan, automatic adjusting speed with heat.10,Voltage ... stabilization, adapt to low voltage quartile (>=100 V), change of the brightness do not v ... )4,Weight:1.5kg5,Overall dimension:420*145*55mm6,lamp life: More than 8 hours7,Sentenced to dark degrees:<4.5D8,operating ...