Identify Bulb Type
10 min#47 #44 bayonet screw base voltage.
Field context
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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.
Industry best practices for dial lamps.
LED — less heat bakelite safe.
Dial glass clip — spring launch risk.
Wrong voltage — dark or blow.