These bulbs are small, but very bright, so they're often used in flashlights and optical instruments such as projectors and microscopes.

Often used in task lights, these four-pin wedge base bulbs are comparable to PL, Dulux, and Biax bulbs.

Energy efficient and long lasting, these four-pin bulbs are often used in task lights. They’re comparable to PL, Dulux, and Biax bulbs.