We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Miniature incandescent bulb with double-contact bayonet base

EDWARDS-SIGNALING

EDWARDS-SIGNALING 2705W120V Miniature Incandescent Light Bulb light kit

SKU CH-H678-BPSH0

Miniature incandescent bulb with BA15d base, 120 V operation and 2,500-hour rated life

  • weight0.01
  • materialHAWA
  • Incandescent light for clear white illumination
  • Double-contact bayonet base fits compatible sockets
  • 120 V AC operation for standard mains supply
  • 5 W power draw keeps energy use low
  • cULus listed and CE certified for safety compliance

Miniature Incandescent Bulb

This Edwards Signaling 2705W120V bulb fits fixtures requiring a double contact bayonet base and 120V AC supply. It delivers 5 watts of white incandescent light for indicator or low-level illumination tasks. The unit is CE certified and cULus listed for compliance. Buyers needing LED efficiency or dimmable operation should choose a different technology.

Replaces 5 W BA15d Lamps

It serves as a direct swap for existing T3-1/4 incandescent bulbs with the same base and voltage. The jump is worth it when the old lamp has reached its 2,500 hour rated life or shows filament failure. No circuitry changes are required because the electrical characteristics match the original specification. Keep a spare on hand for critical signalling circuits.

Simple Bayonet Installation

Push the bulb into the BA15d socket and twist to lock the double contacts in place. The miniature T3-1/4 envelope fits tight panels without forcing. The most common issue is inserting the bulb at an angle which bends the base pins and prevents full contact. Verify the fixture is de-energised before replacement to avoid a 120V shock hazard.

Highlights

  • Incandescent light for clear white illumination
  • Double-contact bayonet base fits compatible sockets
  • 120 V AC operation for standard mains supply
  • 5 W power draw keeps energy use low
  • cULus listed and CE certified for safety compliance

Specifications

BrandEDWARDS SIGNALING
weight0.01
materialHAWA

Questions about this item

What base type does the 2705W120V bulb use for installation?

The bulb uses a double contact bayonet (BA15d) base that twists and locks into matching sockets.

How is the miniature incandescent bulb installed and what step is often missed?

Align the two bayonet pins with the socket slots, push in, then twist clockwise until it locks; the twist step is frequently skipped.

When will the 5 W incandescent bulb need replacement based on its rated life?

The bulb is rated for 2,500 hours of operation, so plan replacement after approximately that many hours of use.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.