Independent reference · not a sales listing
Westinghouse 0473400
Westinghouse T3 20 Watt G4 Base Halogen Low Voltage Lamp
Westinghouse lists this T3 G4 halogen at 20 watts and 290 lumens. Its stated light color is 2950 K warm white. No incandescent-equivalent claim is stored for this model.
View the official record ↗Source citation, not a buying link.Before replacing it
Read these five fields before ordering
Use the old bulb and fixture label together. A shared base or wattage figure answers only part of the fit question.
- 01
Socket and shape
Match G4 exactly. The T3 code describes the bulb envelope, not the socket. Open the G4 base guide. Compare bulb shapes.
- 02
Electrical rating
The source lists 12 V. Confirm that against the fixture and local supply.
- 03
Brightness, not “watts”
Target about 290 lumens. The 20 W figure is input power, not brightness.
- 04
Physical clearance
The official maximum overall length is 1.19 inches. Check shade, cover, and neck clearance.
- 05
Heat, controls, and location
Enclosed-fixture use is not stated; it is marked dimmable; a wet/damp rating is not stated.
Normalized specifications
What the label says
These values come from the cited manufacturer record. If that record omits a field, the table says “not stated” instead of supplying a likely value. See how the label fields differ.
- Manufacturer
- Westinghouse
- SKU / model
- 0473400
- Technology
- HALOGEN
- Shape
- T3
- Base
- G4
- Voltage
- 12 V
- Input power
- 20 W
- Incandescent equivalent
- Not stated
- Light output
- 290 lumens
- Color temperature
- 2950 K
- CRI
- Not stated
- Dimmable
- Yes
- Rated life
- 2,000 hours
- Beam angle
- Not stated
- Location rating
- Not stated
- Enclosed fixture
- Not stated
- Pack quantity
- 1
For comparison
Records with the same base and similar output
Same G4 base and within 35% of 290 lumens. These are comparison leads, not confirmed substitutes.
Related references
Put this model in context
The record describes one lamp. Use these guides for the socket, fixture, controls, and comparable records from the same manufacturer.
G4 · Straight bi-pin
A G4 bulb base has two thin straight pins with nominal 4 mm center-to-center spacing. G4 identifies the connection only; it does not specify voltage, AC or DC supply, capsule size, or transformer compatibility.
Open reference →Pin-base guideG4 vs G9 light bulbs
Compare pin spacing, pin shape, voltage, transformer context, and capsule clearance.
Read guide →Control guideDimmable vs non-dimmable LED
Read the bulb's claim separately from dimmer compatibility and fixture conditions.
Read guide →Manufacturer indexMore Westinghouse model records
Compare verified models from the same official catalog snapshot by SKU, base, shape, power, and output.
Browse brand →Quick answers
Questions about 0473400
What socket does Westinghouse 0473400 use?
Westinghouse lists this model with a G4 base. Look for the same complete base code on the socket or old lamp. The T3 shape is a separate specification.
Is Westinghouse 0473400 dimmable?
Yes. The official record marks this model as dimmable, but the installed dimmer must also support the lamp technology and load.
Can Westinghouse 0473400 be used in an enclosed fixture?
The source snapshot does not state an enclosed-fixture rating. Do not infer one from shape or wattage; confirm on the bulb or manufacturer page.
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