Identify Bulb Type
10 min#47 #44 bayonet screw base voltage.
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#47 #44 bayonet screw base voltage.
Remove back or dial glass careful retainer.
Install match voltage LED ok lower current.
Series resistor dim dial for soft glow display.
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Industry best practices for dial lamps.
#47 6.3V common dial; LED drop-in reduces heat fire risk.
Key benchmarks for dial lamps.
| Bulb | Volt | LED ok |
|---|---|---|
| #47 | 6.3 | Yes |
| #44 | 6.3 | Yes |
LED — less heat bakelite safe.
Dial glass clip — spring launch risk.
Wrong voltage — dark or blow.