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Two glass globe UV CFL bulbs in blue finish, B15D base, 2-pack

Flowtron

Flowtron BF-35 UV Bulb 2-Pack for BK-15D

SKU CH-7KV8-6E94D

Two 15-watt CFL UV replacement bulbs for the Flowtron BK-15D outdoor bug zapper

  • Product typeCFL
  • Product color2-Pack
  • Main insect-attracting component for effective bug control
  • Two-bulb pack reduces cost versus individual replacements
  • Compatible with BK-15D outdoor bug zapper model
  • 35-watt CFL bulb provides 55-watt incandescent equivalent
  • Energy-efficient UV light operates on 110-volt power

Replacement UV Bulb for BK-15D

The Flowtron BF-35 UV bulb two-pack supplies the primary attractant for the BK-15D outdoor bug zapper. Each CFL globe emits blue ultraviolet light that draws mosquitoes and other flying insects toward the high-efficiency shock grid. The pack contains two bulbs so a spare is on hand when the first reaches end of life. Homeowners who operate a compatible Flowtron zapper through the season are the intended buyers.

Two-Pack Value and Compatibility

Buying the pair together costs less than purchasing two single replacements separately. Both bulbs share the B15D base and 35-watt rating specified for the BK-15D model, ensuring direct fit without adapters. The energy-efficient CFL design keeps power draw low while maintaining the UV output the zapper relies on for continuous coverage. No additional accessories, software or connectivity features are included in the package.

Check Fixture Model and Voltage Before Ordering

Verify that the existing unit is the Flowtron BK-15D Outdoor Bug Zapper; other models may use a different base or wattage. Confirm the supply voltage matches the 110-volt rating printed on the bulb. The globes are glass and rated for outdoor use only, so they must be installed in the weather-resistant housing supplied with the zapper. No batteries are required and no app control is involved.

How it compares

Measured against everything we stock in General-Purpose & Specialty Bulbs, at today’s prices. Recalculated every night.

Price $18.99
Typical for this category: the median of 1,791 items is $17.99.

Specifications

Product
Brand nameFlowtron
Model nameUV Bulb
Product typeCFL
Product color2-Pack

Questions about this item

How often should I replace the BF-35 UV bulbs in my BK-15D zapper?

Replace the UV bulbs when insect attraction drops noticeably; the CFL lamps lose UV output over time even though visible light remains.

What limits continuous operation of the BF-35 bulbs in the BK-15D?

The 15-watt CFL design at 110 volts sets the electrical load, and UV degradation over months of all-night use is the practical limit.

How much heat and noise do the BF-35 bulbs add when the zapper runs all day?

Each 15-watt CFL bulb runs cool and silent; the zapper's grid and fan produce any audible sound, not the UV lamps themselves.

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