SATCO|NUVO's S39720 25 watt T5 LED 46 inch Type B ballast bypass aluminum replacement lamp offers single or double ended wiring option, superior 83 CRI light quality and 3400 lumens for commercial lighting. The frosted silver bulb features a miniature bi pin base and delivers exceptional illumination. At a temperature of 6500 kelvins, this lamp provides 50,000 hours of daylight.