Goodbulb's U6-850-17P-G4-BP-5000K 17 watt LED u-bend lamp is a perfect energy saving solution to fluorescent lighting systems. Medium bi-pin base fits into existing fixtures. Quick and easy installation, no need to rewire. Instant on, no flickering or buzzing. UL & DLC listed. Save up to 60% on your energy bill. Ideal lighting for kitchens, laundry rooms, garages, or commercial use in hospitals and offices.