Philips lamps in the USA have a minimum of 12 volts suggested. This can vary according to the lamps and bulbs used and also for the location of the lamp and its usage.
If they are listed as needing 240 Volts AC then you need to give them 240 Volts AC. You give them anything less and they won't work.
Netherlands
150-250 volts
No, Philips produce the LED lighting both for internal and external purpose( flood lamps, parking area, industrial lamps, stadium and airports lighting equipments).
If all four lamps are identical, there will be an identical voltage drop on each. 3 volts / 4 lamps = 0.75 voltage drop at each light.
There are a number of famous brands of industrial lamps. Some of these include General Electric, Firefly Lighting, Philips, Pierlite, Sylvania and Radium.
Most household lamps in the US use either 120 volts or 240 volts, depending on the wiring system in the building. It's important to check the lamp's specifications and the voltage in your home to ensure compatibility and safety.
Divide the total circuit wattage (15 amps x 120 volts = 1800 watts) by the individual lamp wattage (100 watts). This gives you 18 lamps that can be used on the circuit. However, it's recommended to leave some capacity for safety, so a practical limit might be around 15 lamps to be safe.
That would depend upon the voltage of the lamps. Heat lamps in a bath are usually 110 volts AC. You also need to know the wattage of the lamps. That will determine the capacity (think number of lamps) that the circuit could support. These ratings can be found on the lamp itself. The fixture supporting the lamp must also be of the correct capacity.
Lamps do not produce electrical energy, they consume it. The voltage at a lamp depends on the voltage of the local supply. That can be switched on or off to each individual map, or groups of lamps if required.
Not that much for original equipment. Most car head lamps do not receive a full 12 volts because of resistance in the wiring.
It depends on how much power the lamps require, and on how they are connected.