In reality, connecting a light bulb to a battery can be done using a simple circuit. The circuit consists of the following elements:
- Wires for connection.
- Switch or circuit breaker.
- Light bulbs, on the diagram they are usually designated HL.
- Power supply element.
Connection diagram
If you have a regular incandescent lamp from a flashlight or garland, then polarityIt doesn't really matter here. If you have an LED, you need to know which end goes to the positive and which to the negative. A simple diode connection diagram You can find out here.
Once the circuit is assembled, the light fixture will work reliably. Note the voltage it consumes. If it's 1.5 volts, then it will need one. AA batteryAccordingly, if you have 3 V, then use 2 AA batteries.
But what if the light fixture is 6.3 volts, as in the picture below? In this case, our bulb will still glow with two or even one battery, but the effect will be much worse.


Thus, connecting a low-voltage power supply to a load with increased energy consumption will result in poor performance of the device.










