# Quick Answer: Can a 9v battery power a light bulb?

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## What size battery do you need to power a light bulb?

A: Most automobiles run on a 12 Volt system so most of the bulbs are designed for the same. So you need a 12 Volt battery, or two 6 Volt batteries wired in series.

You don’t need electrical wires to power a light bulb. You can use a battery! Just like a flashlight runs on batteries, you can connect a battery to a small light fixture or bulb to light it up.

## Can 2 AA batteries power a light bulb?

Two AA batteries in series can light up an LED since they together supply about 3V. This should work for most LEDs except Blue and may be White. More cells in Series will surely work but then you need to add a resistor in series to limit the current.

## How long can a AA battery power a light bulb?

So, for a given load, the AA will last about twice as long. Your 3W light running off a single 1.5V battery will consume 3 / 1.5 = 2A of current, so will (nominally) last about 2.4/2 = 1.2 hours for the AA and 0.6 hours for the AAA.

## How do you make a lightbulb light up with a battery?

1. Strip about 3/4″ of insulation off each end of your two wires.
2. Tape one end of one wire to the negative end of your battery. Tape the other end of the wire to one side of the light bulb stem.
3. Tape one end of the other wire to the positive end of your battery. …
4. Watch the light bulb light up!
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## What can I power with a 9 volt battery?

It has a rectangular prism shape with rounded edges and a polarized snap connector at the top. This type is commonly used in smoke detectors, gas detectors, clocks, walkie-talkies, electric guitars and effects units.

## How do you make a light without electricity?

Oil lamps, flashlights, candles, and glow sticks are great emergency light sources. Don’t resort to smashing bacon fat into a jar with your bare hands unless you absolutely have to.

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