eTopLighting T3L-120V-500W-50P 500W 120V T3L J Type Halogen Clear Double End Base Light Lamp Bulbs (Pack of 50), 118mm (50) x j type double ended T3 120V 500W 118Mm halogen light bulb Size: see pictures above Long life: approx. 2,500 hours bulb life Versatile usage: applicable home, office, restaurants, and stores High brightness light bulb