Contour Series MR16 GU10 Warm White 3000K LED Bulb Replaces 50W. The Verbatim Contour Series 3000K 500 lumen MR16 GU10 LED lamp is a high-quality energy efficient 50-watt replacement lamp. Contour Series MR16 GU10 LED lamps utilize Thru-Vent Technology which allows air to pass through the casing of the lamp and maximizes the surface area of the heat sink without visible heat sink fins. The result is a smooth white streamlined exterior that closely resembles the appearance of traditional halogen MR16 lamps. Fully dimmable with a warm 3000K color temperature Contour Series 3000K MR16 GU10 LED lamps are an excellent choice for indoor pendant or track lighting applications. Backed by Verbatim's 3-year limited warranty the 3000K 500 lumen MR16 GU10 LED lamp has an estimated design lifetime of 25000 hours resulting in reduced maintenance and replacement costs when compared to halogen lamps.