This dimmable/cct tunable LED tube emits 2450 to 2700 lumens of light, making it an energy-savvy switcheroo from fluorescent lighting. Install this 4-foot LED tube without or with a ballast for a super simple set up. And don't stress out about the cost of upkeep - its shatterproof glass and 50,000-hour lifespan mean energy and maintenance worries are a thing of the past.