EarthTronics UL Type A/B LED T8 Lamp is a retrofit direct wire tube for single or double end installations. It is a universal solution that can be used with Type A and Type B T8 lamps. Type A is a plug and play solution that can work on electronics ballasts and Type B can be direct wired quickly, no lamp holder modifications necessary. This lamp is color selectable, offering 5 choices 3000K, 3500K, 4000K, 5000K or 6500K which can be adjusted in the field by just sliding the switch to your desired color. This is an excellent option for those that want a fast installation with the ballasts and have a backup plan if the ballast fails. It provides exceptional LED lighting with reduced energy and maintenance costs. This lamp also works with shunted and non-shunted sockets, dry or damp locations and enclosed fixtures. The beam angle provides a wide distribution pattern and is perfect for directing more light to the working surface from existing troffer fixtures and strip fixtures as well as task and display lighting applications. Perfect for replacement of T8 fluorescent tubes. This lamp is engineered for high lumen maintenance over its 50,000 hour rated. 120/277V operation.