High-output HID and LED light bulbs produce bright light to illuminate retail and commercial spaces, jobsites, and large, open areas, such as parking garages, warehouses, and gymnasiums. They install into compatible fixtures and can remain on for long periods of time. HID (high-intensity discharge) bulbs are an older lighting technology that includes metal halide, high-pressure sodium, and mercury vapor bulbs. They are commonly paired with a reflector that redirects light to increase intensity and reduce glare. HID bulbs require installation in the manufacturer-recommended operating position to maximize longevity and prevent rupture. LED bulbs operate in any position and provide a more energy efficient, longer lasting alternative to HID bulbs. They typically require a ballast-bypass installation, which involves removing the ballast and wiring into mains electricity.