coospider-repta zw4s15w-z135 4W UVC Light Bulb 2 Pack

Two-Pack UVC Replacement Bulbs

This two-pack supplies 4 W UVC bulbs designed to replace the lamps in AC9200WCA and LB9200 units. Each bulb measures 5.9 inches long and fits a G5 base for direct swap-in. The 253.7 nm peak wavelength targets airborne bacteria, viruses and mould spores without producing ozone. Buyers who need a different base type or higher wattage should look elsewhere.

G5 Base Fits Existing Fixtures

The G5 base slides into compatible sockets without adapters or rewiring, freeing the installer from sourcing separate ballasts or connectors. Two bulbs are included so a spare is on hand when the first reaches its 6000-hour rated life. The 180-day manufacturer warranty covers early failures. Installations that require a different pin spacing or voltage cannot use these bulbs.

Steady 253.7 nm Output Over 6000 Hours

Quartz envelope construction maintains consistent UV-C transmission throughout the rated lifespan, avoiding the sharp output drop seen in cheaper glass envelopes. Replacement every six to eight months keeps disinfection performance stable in continuous-run devices. The ozone-free spectrum reduces material degradation inside the host unit. Environments with heavy dust or vibration may shorten the practical interval.