Add brightness to your space with a genuine OttLite PL13-E 13-watt replacement bulb, perfect for indoor use. This lamp bulb features clear white light and has a bulb life of up to 10,000 hours. With 1 bulb and 2 pin connectors, this compact fluorescent lamp is designed with a tube-shaped bulb and a bulb shape code of PL. The OttLite brand is known for its excellent quality and this model, T1333E, is no exception. The light bulb is made of glass and is manufactured in China.