Lemonbest&reg; Energy Saving 110V 9W PAR20 LED Bulb Spotlight Flood E27 Base Cool White 6000K (2 pack) PAR20 LED light, Diameter: 2.3inches, Length: 3.3inches Polished Finish Aluminum with Beautiful Appearance 48 hours aging time, 50000 Hrs Lifespan Guaranteed;90% Saving on electricity bills, reducing maintenance cost Easy Replacement of Traditional Halogen Lamps, Standard size Common problem resolution: If using a dimmer switch to control this non-dimmable bulb, the bulb may flicker or not top bright. Please try a normal on/off switch. Or contact us directly.