CRLight 5W 4000K LED Tubular Bulb Daylight (Neutral White) 550LM Dimmable, 55W Incandescent Equivalent,Replace 10W Compact Fluorescent CFL Bulbs,E26 Medium Base, T45 Filament bulbs, 4 Pack TECHNICAL FEATURES - Dimmable LED Filament Tubular Bulbs, E26 Medium Base, AC 110V-130V, with Overload Protection,Short Circuit Protection and Over Temperature Protection, The Best Recommended Dimmer is Lutron DVCL-153P-WH Diva NEUTRAL WHITE 4000K LED BULBS - Antique T45 Tubular Style, 4000K Neutral White Glow, 550 Lumens, 4000K is More Closer to Daylight, Produce Cool, Natural and Neat Atmosphere, 360 Degrees Beam Angle, Less Heat and Instant On ENERGY SAVING - Replace 55W Incandescent Bulb by 5W Filament LED Bulb, Save over 90% on Electricity Bill of Lighting ECO-FRIENDLY LED BULBS - Ultra-thin Crystal, Clear Glass with High Transmittance, Mercury-free, No UV, CE and RoHS Authenticate EXTREMELY LONG LIFE - Average 30000 Hours Lifespan, 16 Years Life (5 Hours per Day), 2 Years Warranty