Long life light bulbs differ from standard light bulbs in 3 ways:
Use of a heavier 5 point filament design.
Use of a variety of gases (krypton, xenon, argon) to stabilize the breakdown of the filament.
Use of a heat deflecting ring at the base of the bulb.
Manufacturers use 2 or 3 of the above methods to produce either 10,000 or 20,000 hour bulbs. We offer a variety of choices so you can find the right long life light bulb to meet your needs.