Kittmip AQ-217L-TM4J 5W UV-C G23 light bulb 4 pack

UV-C bulb set for GermGuardian purifiers

This pack supplies four 5 W UV-C lamps with G23 two-pin bases, built to fit the listed GermGuardian air purifiers. The tubular bulbs emit white-tone UV light at a CRI of 80 and are rated for roughly twelve months of continuous use. They replace the original LB4000 modules without rewiring.

G23 base and 5 W limit define fit

Each lamp draws 5 watts and uses the industry-standard G23 bi-pin base, so it only works in sockets designed for that exact format and power level. The physical envelope measures 5.51 by 5.51 by 1.97 inches, matching the factory dimensions. Purifiers requiring a different base, wattage or envelope will not accept these bulbs.

Twelve-month rated life decides replacement cycle

The manufacturer specifies an average life of twelve months and recommends changing bulbs every ten to twelve months for best germicidal output. After that period UV-C intensity drops below the level needed for effective VOC reduction and allergen control. Buyers who need longer intervals between changes should look for a different bulb technology.