Lemonbest&reg; 9W Dimmable PAR20 LED Light Bulb Flood E27 Base Cool White 6000K Dimmable 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 the light cannot be dimmed normally, the problem is very likely to be your dimmer, please use a led dimmer to try it again or contect us directly.