BRIGHTNESS-AJUSTABLE ILLUMINATION DEVICE AND ILLUMINATION SYSTEM USING THE SAME

摘要

A brightness-adjustable illumination device includes at least two electric lamps and a control module electronically connected to the at least two electric lamps for controlling the lamps on and off. The control module obtains brightness of local environment of the lamps, and controls the number of the lamps turned on according to the brightness of the local environment. A brightness-adjustable illumination system is also disclosed.