Since almost everything has been said in other reviews, only 2 notes: With attached battery it happens during transport / stowing that the light turns on accidentally, because a short press on the brightness knob / rear is enough to turn it on, so it's better to remove the battery! There is the power supply / AC adapter for Quenox CN-160 Video-LED, power supply with battery adapter, where network operation can be realized. The adapter is a little stiff, the first power supply immediately fell out / power light blinks / light does not come on, the vice exchanged power supply on the other hand works. The lamp requires 18 watts, the power supply delivers 15 Watts. Let's see if the long-term operation as causing problems / heating / overloading?