No Glass, Non-Aircooled Sturdy steel housing & aluminum hammertone reflective on all 4 side Large footprint with even light distribution Louvered holes to help eliminate heat Accepts most standard E39 Base HID lamps from 250W-1500W Works with both MH and HPS lamps Pre-wired 15 cord with Standard ballast plug to work with most popular brand ballasts. – Measurements: 35″, x 27.6″, x 10.2”