Replacement bulb for Vector Plasma screened or grill fly system. This replacement bulb is a 36 Watt bulb, Black Light 350 for a Vector model 20-1081. Measures 16" x 1.5" x 0.9". The Vector Plasma uses two of these bulbs. Fits Vector Plasma fly lights only. Lamps should be replaced every 12 months as the amount of UV light diminishes over time. This is for use in Vector Plasma 1081 or 1083 Fly Light, Vector Plasma One 20-1080-1 or 20-1084 Fly Light.