Emt Conduit 1 Hole Click-on Strap | 2.86 in Length X 0.87 in Width X 1.5 in Height, 3/8 in Dia Hole, for Emt | Controls 250 W Dimmable Led/cfl (Screw-Base), 600 W Incandescent/halogen or 350 W Hi-Lume 1 Percent 2-Wire Led Driver Loads. Paddle Turns On/off. Slide Up to Brighten, Down to Dim. Provides Reliable Dimming of Dimmable Leds/cfls, as Well as Halogens and InFurbay Electric Supp