Commercial venues, schools, hospitality, health care - any large-scale lighting application - will benefit from immediate energy savings and less maintenance.5W T8 LED 4Ft 50K G13 50K Hours 1700L Type B BBP 1/2 End Wiring This 10.5-watt at 5000K is 4-feet in length and is engineered for single or double-ended wiring options and will not light unless the ballast is bypassed..