I have a small high-intensity lamp in which the original bulb burned out. The original is a type #93, 12 watts, 12 volts. Not having any such bulbs available (and living some distance away from any hardware store which might have #93s), I replaced it with an automotive turn-signal bulb. It works, but I am concerned about possibly overloading the transformer in the base of the lamp. My question basically is this: What was or is so special about the #93 bulb used in these small high-intensity lamps that the manufacturer would put a warning on the underside of the lamp base to use only this type of bulb? My lamp has such a warning. I would think any 12-volt bulb with the proper base to fit the socket would work. The only thing I haven't tried with this lamp yet is using it on the high brightness position of the power switch. The bulb seems plenty bright if not too bright on low; I am half afraid to run it on high for fear of either shattering the bulb or burning out the transformer, or both. Is there any real danger of this sort of thing happening, or am I worrying for nothing?
Thanks much.
Jeff, WB8NHV Fairport Harbor, Ohio USA
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