10-position lumen selectable, Twistlock NEMA photocontrol for dusk-to-dawn operation, 2 die-cast aluminum housings, Adjustable slipfitter mounting arm included, Lumen packages range from 4,900 up to 34,000 lumens (30W - 250W), Replaces up to 450W and 1,000W HID equivalents, Efficacies up to 135 lumens per watt at maximum output, Energy and maintenance savings up to 79% versus HID solutions, Three optical distributions available (T3, T4, T5), Optional motion sensor for maximum energy savings and code compliance