Ge Lighting 89681 ECO MR16 Halogen 12 Volt 50 Watt Replacement For EXN, specially designed for decorative lighting, retail display, spotlighting, and hotels. This bulb features a GU5.3 base, it has a color temperature of 3000K, and it lasts approximately 1000 hours. For best performance, avoid touching the bulb or inside of reflector. Fingerprints can affect the lamps performance. Deterioration of socket contacts may also affect the lamps performance. Replace socket if deterioration is observed.