Utilitech 40 W Replacement Bulb 6.3 W LED Light Bulb A19 Base Warm White 3000 K 40 W Incandescent Equivalent - 6.3 W LED Bulb - 450 Lumens Yearly Operating Cost: $0.76 based on 3 hr usage per day. Life of Bulb: 13.7 years ( Based on 3 hr usage per day. ) 3000 K Warm White