... ,no noise ,not any radiation T8 Voice Control Tube,12-19w,smd3528 with motion seniorSpecification MaterialAL+PCPower12-19WSize26 x L1200mmLight ... tube for example. 1. No voice: Using voice sensor to control LED tube, every one with intelligent control. It glimmers 2.5W ... limit which is 90% energy saving.2. With voice: It fully lights when voice detected within its detectable range, the power changes ...