This 18 inch Blacklight will light up many things in a smaller room or area. Use to light up glow in the dark, UV reactive items, or blacklight responsive items. Auto-Start U.L.- approved 15-watt bulb On / off switch Ready to go Complete with reflector Size: 18in x 3.5in x 1.5in Bulb: F15BLB Power: 110v 90 day manufacturer warranty