The Hi-Tech Lamps Part number 50A21W120V-O is a 120 volt (120V), with a maximum of 150 watt (150W) Incandescent Lamp made by Osram. This lamp has a 3CONTACT Medium Aluminum base with a A21 bulb shape and an overall length of 134.9375mm. It has a maximum average lifetime of 1200 hours. It has a maximum of 2120 lumens. The color temperature is 100K, with a color rendering index (CRI) of 2850 and is also known as 50/150A21/W/2PK/12 120V.