UV Light Bulbs

Find replacement UV bulbs and lamps for germicidal systems, water purifiers, HVAC air treatment units, nail curing lamps, reptile terrariums, tanning equipment, medical sterilizers, and blacklight fixtures. We carry UVC, UVB, and UVA bulbs across common base types including G23, 2G11, G13 (bi-pin), four-pin compact, and medium screw base (E26/E27).

Germicidal UVC replacement lamps (253.7nm) are available for water purification systems from Sterilight, Viqua, Trojan, HGTV UV, Aqua-Pure, and Watts, as well as air purification units from Honeywell, Lennox, Carrier, Fresh-Aire UV, and RGF. We also carry UVC bulbs for commercial sterilization cabinets, laboratory biosafety hoods, and healthcare surface disinfection systems. If your unit lists a bulb model number (such as S330RL, GPH436T5L, or G30T8), search it above to find the compatible replacement.

For UVB applications, we stock reptile and terrarium bulbs in compact fluorescent and linear tube formats, as well as narrowband UVB lamps used in phototherapy equipment. UVA bulbs are available for nail curing lamps (9W and 36W systems), UV resin curing, forensic inspection, pest control traps, and blacklight fixtures for event and stage use.

Most UV lamps lose effective output well before they physically burn out — a germicidal bulb that still glows may only be producing a fraction of its original UVC intensity after 9,000–12,000 hours. If your water purifier or air treatment system has a replacement timer or indicator light, the lamp should be changed on schedule even if it still appears to be working. Running a degraded UV lamp gives the appearance of protection without the actual germicidal effectiveness.

Not sure which bulb fits your system? Contact us with the equipment brand, model number, and the lamp part number printed on the existing bulb — we'll match you to the correct replacement.