e-luminate LED Light Bulb, MR16 Dimmable CREE XPE (Warm White (2700K); 25 Degree Beam Angle) Bi-pin base (Gu5.3 base), replacement for the 25W & 40W inefficient halogen MR16 bulbs High brightness, fully dimmable Est yearly energy cost is $0.60 (based on 3 hrs/day & 11 cents/kWh; depends on rates & use.) Saving you up to $96.25 in energy costs per bulb Uses CREE LED, a top LED Brand