This is a CURRENT Led50ed23.5M/740 Led Replacement Lamp with a bulb wattage of 50W and a color temperature of 4000K. It has an active cooling fan and is suitable for enclosed fixtures. The bulb shape is ED23-1/2 and the bulb base type is Medium Screw (E26). The lamp has a lumen output of 7500 lm and a weight of 1.9000 lbs. It is a HID replacement LED bulb with a bulb diameter of 3 5/8 in and a length of 7 3/4 in. The lamp is shatter-resistant and has a California Prop 65 warning.