Ballast Type: HID, Magnetic; Lamp Type: High Pressure Sodium; Lamp Watts: 150W; Circuit: R-HPF; Voltage: 120V AC; Power Factor: 0.90; Ballast Factor: ; ANSI Code: S55; Min Temp - deg F: -40°F; Dimensions: 2.64 in. L x 3.35 in. W x 2.25 in. H; Enclosure: BL