Emperor Aquatics 25 Watt T5 Style UV Lamp

The 25 watt Replacement UV Lamp for SMART UV Sterilizers and the Tadpole UV Pond Filter is made of high quality quartz glass and offers 13 months (9,000 hours) of continual operation of lamp life. The 25 watt ultraviolet lamp has a length of Length of 18.5" and a diameter of 0.75".