The VersaLamp 481-W LED lamp is a T12, 48” length lamp with two rows of true white 4000° color temperature LEDs for all ambient lighting applications. The long-life LED lamp sources are energy efficient, requires zero-maintenance, simple installation and operation. Perfect for new applications with our Versa line of luminaires or most brands of similar luminaires. Great for retrofit applications when used with our retrofit kit sold separately. This is a line voltage lamp for 100-277v 50/60Hz electrical power.