Lemonbest&Acirc; Energy Saving 9W PAR20 LED Bulb Spotlight Flood E27 Base Cool White 6000K 110V PAR20 LED light, Diameter: 2.3inches, Length: 3.3inches Polished Finish Aluminum with Beautiful Appearance.90% Saving on electricity bills, reducing maintenance cost 48 hours aging time, 50000 Hrs Lifespan Guaranteed Easy Replacement of Traditional Halogen Lamps, Standard size Common problem resolution: If use a dimmer switch to control this non-dimmable bulbs, the bulb maybe flicker or not top bright. Please try a normal on/off switch.