Lemonbest Super Bright 9 Watts E27 Base PAR20 COB LED Spot Down Light Ceiling Lamp Bulb Halogen Replacement AC100-245V Cool White CoolWhite(6300-7000K) Beam Angle: 60 degree Non-dimmable, Please do not use dimmer switch Bulb Diameter: 2.4inches, Length: 3.4inches 48 hours aging time, 50000 Hrs Lifespan Guaranteed 90% Saving on electricity bills, reducing maintenance cost