Because 240 volts is dangerous
24 volt
12volt
12 Volt
2003 road kings have a 12 volt electrical system
24 volt armature is accept balancing cut
12 volt
With a 12 volt battery charger that is made to plug into a 220 volt circuit.
Not by connecting them directly, that'd be too powerful.
there is no such thing as a free lunch power consumption is directly proportional to current draw firstly you need to convert mains voltage to12volt via a transformer the advantage to 12 volt lighting is only recognised when using lower wattage halogen or led lighting. as far as i am aware the use of a mains voltage 100watt globe draws the same if not slightly less than a12volt 100watt light as the transformer uses power (in the form of heat) to produce 12volt at least this is what all my "sparky" contacts tell me . my own experience has shown led lighting to be the way to go , i am using a small deep cycle battery ,a small solar panel and leds so far so good with more and more 12volt led lights becoming available
A 277 volt lighting fixture is one that is usually used in an industrial application. The reason for this is the voltage rating. A voltage potential of 277 volts is the voltage to neutral (ground) of a three phase four wire 480 volt distribution system. 480 volts / 1.73 = 277 volts. Rather than having to add a transformer to the system to provide 120 volts for lighting, manufactures produced a ballast for fluorescent fixtures that operates on the 227 volt potential.
That appliance might last longer if you use an eight volt adapter rather than a nine volt adapter.
The higher the voltage, the less amperage is required and is easier to supply power to the device. Motors take much more power than lighting, therefore voltages may be higher for easier transmission.