e-luminate LED Light Bulb, GU10 Dimmable CREE XPE (Warm White (3000K); 40 Degree Beam Angle) Bi-pin base (GU10 base), replacement for 25W & 40W inefficient halogen GU10 bulbs High brightness, up to 220 Lumen, fully dimmable Est. yearly energy cost is $0.48 (based on 3 hrs/day & 11 cents/kWh; depends on rates and use.) Saving you up to $99.00 in energy costs per bulb Uses CREE LED, a top LED Brand