50 WATT MR 16 TYPE EXN HALOGEN LIGHT BULB - 36 DEGREE BEAM SPREAD - 4200 KELVIN - LONG LIFE 6,000 HOURS Spectra Brite MR16 halogen lamps utilize a titanium reflector coating to ensure consistent color throughout the life of the lamp - eliminating color shift. The Full Spectrum 4200K rating provides balanced white light, making colors appear brighter and more vivid while reducing yellow light to cut glare and eyestrain. A quartz envelope and pure tungsten result in durability and longer life. The regeneration cycle continuously restores the filament, creating a 6 times longer burning life and clear crisp white light. Nickel end pins resist heat and provide positive electrical contact.