Viribright 5W A19 LED Light Bulb, Brightest 40 Watt Incandescent Replacement, Warm White (2800K) Save Electricity Bill. Save more than 85% on electricity bills. Replaces 40 watt inc Dimmable. Viribright 5w a19 lED light bulbs are fully dimmable. Safe & Fully Certified. Rohs compliant. UL Listed. Shatterproof, shockproof and vibration proof. Cool to touch. Reduce Lamp Buying Costs. Lasts more than 25,000 hours,3 year warranty. Save time and money on changing bulbs. Easy To Install. Easily fits into standard incandescent or cfl light bulb fixtures.