This tube brings an energy-savings of 30w. Thus, a lower utility bill for you every month. This tube is ballast compatible and it’s just that you need to check with the manufacturer for the ballast compatibility list. These tubes are housed in rugged die-cast aluminum for efficient heat dissipation. For the standard ceiling height, these tubes having a beam angle of greater emit enough bright light, have a long lifespan, and have a shatterproof coating, unlike the fluorescent tubes that were of inferior light quality.