Eaton
Eaton 28-5185 2.2 W T3-1/4 BA9s incandescent bulb
A 24 V AC incandescent lamp with a BA9s miniature bayonet base delivering 4 lm at 2.2 W for 15 000 hours rated life
- Engine BrandEATON
- Engine Size30.5 mm
- 2 W at 24 V AC for low power draw
- 15 000 hour rated life reduces replacements
- Miniature BA9s base fits T3-1/4 sockets
- 4 lumens white light for indicator use
- CE and CSA certified for compliance
Eaton 28-5185 2.2 W BA9s Bulb
The Eaton 28-5185 is a 2.2 W incandescent bulb with a T3-1/4 shape and BA9s miniature bayonet base. It operates on 24 V AC and produces 4 lumens of white light with a rated life of 15,000 hours. The bulb measures 1 3/16 in overall length and carries CE and CSA certifications.
Suited for 24 V indicator panels
This lamp fits panels and equipment requiring a BA9s base at 24 V AC where a low-output white indicator is specified. It is not dimmable, so circuits needing brightness control should look elsewhere. Buyers needing higher lumen output or a different voltage will need a different bulb.
No bundled accessories included
The product is supplied as a single bulb without additional hardware, connectors or software. Installation relies solely on the BA9s base mating with the matching socket. Certifications confirm compliance with CE and CSA standards for the component itself.
Highlights
- 2 W at 24 V AC for low power draw
- 15 000 hour rated life reduces replacements
- Miniature BA9s base fits T3-1/4 sockets
- 4 lumens white light for indicator use
- CE and CSA certified for compliance
Specifications
| Engine Brand | EATON |
|---|---|
| Engine Size | 30.5 mm |
Questions about this item
Does the fixture already need a BA9s miniature bayonet socket for this 24 V 2.2 W bulb?
Yes, the bulb uses a BA9s miniature bayonet base, so the fixture must provide that exact socket type.
Will this 24 V AC incandescent bulb operate correctly if the existing circuit is also 24 V AC?
The bulb is rated for 24 V AC, so it will work on a matching 24 V AC circuit without modification.
How can I confirm the bulb is performing as specified once installed?
At 24 V AC it should draw 2.2 W, produce 4 lm of white light, and reach its 15,000-hour rated life under normal conditions.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
KINGSOM 907 Cordless Soldering Iron Kit 2-in-1 Corded Wireless 8s Heating 260-450°C 500-842°F
- Residential
Portable Soldering Iron USB-C Rechargeable 510 Thread 3-Level Temperature Black
- Residential



