This OSRAM 150W/21V tungsten halogen bulb is most commonly used for projections fiber optics and color printers. It has a rated life of 40 hours produces lumens of 354 and has a GX5.3 Bi-Pin base. Applications• Projection • Fiber Optics • Equipment • Color PrinterFeatures• OSRAM EJA Tungsten Halogen Bulb • MR16 Lamp Abbreviation Name EJA Ansi Code EJA Base GX5.3 2-Pin Bulb Type Halogen Bulbs Color Rendering Index (CRI) 100 Color Temperature (K) 3400K Diameter (in) 1.989 Filament CC-6 Lamp Finish Clear Luminous Flux (LM) 354 Maximum Overall Length (in) 1.689 Rated Life (Hours) 40 Shape MR16 Voltage (V) 21V Wattage (W) 150W Working Distance 28mm