Philips NEW CorePro LED spot GU10 4.6W (=50W) in 4000K cool white is a perfect fit for spot lighting where dimming is not required. It delivers a warm halogen-like light, and is compatiable with most existing GU10 fixtures. It is designed as a retrofit replacement for 50W halogen or incandescent spots. CorePro LED lamps deliver huge energy savings and minimize maintenance cost.