Weanas 4x COB GU5.3 Dimmable LED PA Spotlight Bulb Lamp 3 Watt AC 110V Warm White 20W Halogen Track Bulb Equivalent Replacement 120&deg; Beam Angle Save electricity bill: Replace 20W halogen bulb by 3W LED, save 90% on electricity bill of lighting Light angle: 90 Directional;COB LED,AC 110V;Dimmable. Easy Installation:Standard MR16 GU5.3 base,can be easily fitted instead of ordinary halogen bulbs. Reduce re-lamp frequency:Lifespan is over 50000 hrs,save effort and maintenance costs on changing bulbs frequently. Eco-Friendly:No lead or mercury; No UV or IR Radiation.