The Sylvania 54249 stage and studio lamp has a T3 bulb shape and a G6.35 base type. It operates at 50 watts and 12 volts and will typically last an average of 50 hours. This bulb has a base down/horizontal burning position. The 54249 bulb's corresponding ANSI codes are BRL/BCD. This lamp has a color temperature of 3300 Kelvin and is typically used in microscopes, medical, ophthalmic, microfilm, and projector applications.