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Four small UV-C bulbs with two-pin G23 bases in a clear pack

LB4000 5W UV-C Replacement Bulb 4-Pack

SKU CH-777P-4GDCJ

Four 5 W UV-C lamps with G23 bases, 6 000-hour life and 253.7 nm output for compatible Germ Guardian purifiers

  • Power rating5 W
  • Average life6,000 h
  • Lamp toneUV-C
  • Product typeULTRAVIOLET, 39101600
  • Compatible with multiple Germ Guardian models including AC4825 AC4900 AC5350
  • 5 watt UV-C output at 253.7 nm wavelength for effective air treatment
  • G23 two-pin base allows straightforward tool-free bulb replacement
  • Rated 6000 hour lifespan reduces replacement frequency to once yearly
  • Four-bulb pack provides spare units for continuous air purifier operation

LB4000 5W UV-C Replacement Bulb 4-Pack

This pack contains four new 5-watt UV-C lamps with a G23 two-pin base, rated for 6,000 hours of service life. They are designed as direct replacements for the LB4000 bulb used in compatible Germ Guardian air purifiers.

Compatibility and use

The bulbs fit models including AC4300BPTCA, AC4825, AC4850, AC4850PT, AC4900, AC4900CA, AC5300B, AC5350B, AC5350W, AC5900, CDAP4500 and CDAP5500. Buyers with other purifier brands or models requiring a different base type or wattage should verify fitment before ordering.

G23 base and 253.7 nm output

Each lamp uses a G23 2-pin base and emits ozone-free UV-C radiation peaking at 253.7 nm. This specification determines whether the bulb will install and function correctly in the target air purifier.

How it compares

Measured against everything we stock in Lighting Fixtures & Bulbs, at today’s prices. Recalculated every night.

Price $27.99
Typical for this category: the median of 491 items is $28.99.

Specifications

Product
Brand nameHWEIUA
Product typeULTRAVIOLET, 39101600
Power
Power rating5 W
More details
Average life6,000 h
Lamp toneUV-C

Questions about this item

Which air purifier models accept the 5W G23 UV-C bulb with peak wavelength 253.7 nm?

The bulb fits Germ Guardian models AC4300BPTCA, AC4825, AC4850, AC4850PT, AC4900, AC4900CA, AC5300B, AC5350B, AC5350W, AC5900, CDAP4500 and CDAP5500.

Will the 2-pin G23 base install in the same socket as the original LB4000 bulb in my AC4825?

Yes, the 2-pin G23 base matches the original LB4000 socket, so the replacement installs directly without adapters.

How can I confirm the UV-C output is still at the 253.7 nm peak after 6000 hours?

The bulb is rated for 6000 hours; replace it every 8 to 10 months or when the purifier’s UV indicator signals reduced output.

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