Features Outdoor twist-to-lock photocell sensor. Can be used on sports fields. Parking lots. Commercial buildings. Street lights or other nema locking plug type connections. Turns light on at dusk & off at dawn. Locking type plug configuration. Works with incandescent, Fluorescent, LED Halogen. Mercury vapor or high pressure sodium bulbs. CFL compatible. Time delay eliminates false on/off triggers. Dimension – 2.28 x 4.12 x 6.62 in. Item Weight – 0.25 lbs.