Product Description 
Our Direct Drive technology eliminates the need for an external driver or ballast, We've added optical lenses to cover each individual LED chip in the tube.which eliminates hot spots and ensures consistent light distribution on. We've provided a rotatable R17D end cap that swivels, ensuring that the tube can be adjusted to provide a light beam in any direction.Count on Keystone for a tube with a 50,000 hour lifetime and a 5 year warranty Heavy duty aluminum heatsink ensures LEDs run cooler for longer. Plastic and aluminum construction ensures less breakage