Basically the circuit to the lamp opens and closes in a specific amount of times per minute. In some models this can be varied with a control circuit that allows the operator to set how many times the lamp is to flash per minute.
The voltage isn't decided by the lamp, but by the supply the lamp is hooked up to.
The formula for current is Amps = Watts/Volts. The lamp itself would draw 4.16 amps. Since the voltage of the lamp is 12 volts there is a internal transformer involved in the fixture itself. It doesn't matter what the input (primary) voltage to the transformer is, so long as it meets the manufacturer's specification as to the proper voltage to operate the fixture.
This type of conversion could be troublesome. To change to 120 volt system means that the feed wire has to be rated for underground use and rated at 300 volts. Where as the existing low voltage wiring does not have to be subjected to these rules due to using low voltage. The lamp socket in the post is next. It has to be rated at 120 volts and the existing low voltage socket can not be used.
Operating at half the required voltage, the lamp will not operate at full capacity if it comes on at all.
Ohm's Law: Resistance is voltage divided by current 110 volts divided by 0.4 amperes is 275 ohms.
The projector needs a new lamp?
A flashing engine light is usually a misfire.
Because your lamp is probably in wrong.
The projection lamp, from the sound of things.
The resistance of a lamp operating at 115 volts and using 0.25 amp of current is 460. The relationship I used is Ohm's law.
110 volts was chosen to make light bulbs practical and economically competitive with gas lighting. Edison selected 100 volts as a compromise between distribution costs and lamp costs. Generation was maintained at 110 volts to allow for a voltage drop between generator and lamp.[1]
The voltage isn't decided by the lamp, but by the supply the lamp is hooked up to.
Yes, lamp cord is rated in the 300 volt wire classification. This means that the cord is approved for use up to a maximum of 300 volts.
6 Volts.
No, it is not safe. The lamp is rated for a certain voltage, 125 volts, and supplying 240 volts to it would exceed design safety margins. It is not just a case of changing the bulb. It would be a different story if the lamp itself were rated for 240 volts, but that's not what the question said.
Check the output of the alternator--should be 14.2 volts
the watts in the lamp and the volts behind the light