Viqua Replacement UV lamp The Viqua 602805 lamp is the low pressure regular intensity original replacement UV bulb. When you buy a Genuine Viqua 602805 UV lamp you can be assured of the performance, safety, and warranty of your system. Compatible with D, D4/PLUS, D4-V, C, C4, C4-V and IHS (D4) UV systems Viqua 602805 UV lamps have a full one-year warranty and have been tested in order to deliver a specific UV intensity in each system that is offered. Specifications: 2 O-rings included. Lamp life is 9,000 hours or 1 year. Low pressure high output lamp. Lamp has a black base. Environmentally friendly, with less than 10mg of mercury (70% less than most other commercially available UV lamps).