LED BR30 light bulbs have a face diameter of 3.75 inches and are designed to replace standard 65W incandescent BR30 bulbs in 4 inch and 5 inch recessed cans. The LED bulbs save up to 85% on energy costs compared to incandescent and offer a long 15,000 to 25,000 hour rated life. The LED bulbs in this category also include options for warm white (2700K), neutral white (3000K), cool white (4000K) and very cool white (5000K) illumination. Dimming is a standard feature. If you need assistance, call 800-784-1998 to speak to a lighting specialist.