5W MR16 GU10 LED Light Bulbs, 50W Halogen Bulb Equivalent, 300lm, Perfect Standard Size, Warm White, 38&deg; Beam Angle, Recessed Lighting, Track Lighting Save electricity bill. Replace 50W halogen bulb by 5W LED will save 90% on electricity bill of lighting Reduce re-lamp frequency. Lifespan is over 30000 hrs. Save effort and maintenance costs on changing bulbs frequently Easy to use. Standard MR16 shape with GU10 base, which can replace halogen bulb directly 38 degree beam angle