Want to make battery powered light bulb, that runs on 220 VAC

You may be able to use LED's if you place a thin sheet of Teflon in front of the LED's. Teflon acts as a labertian radiator when it transmits light. It does a very good job of turning a point source into an evenly distributed dome of light.

Hello bepa cybopoba,

How about using:

1. Step up transformer 12v/220v.

2. Use MR- 16 12v 50 watts halogen bulb.

Kind regards

Roman

If the lamp you are using in 220V AC can run in 220V DC ( eg incandescent lamp) , then have 20 nos 12 V Lead acid battery in series to light up.Other option is to use an inverter to convert 12V DC to AC 220V if the light needs AC power.

Thanks guest, I think and type too fast without thinking that bepa cybopoba is not an electrical person 12vdc to 220vac.

Kind regards

It is simply not worth trying to run mains lamps off 12 volts. using simple ohms law alone will tell you that quickly.

LEDs are the best bet, they will allow your lights to run far far longer on a battery than normal bulbs will.....

There are electroluminescent displays that are light emitting capacitors (I was told). They are flat surfaced, low amp, high voltage, and would seem to be perfect for your work. Try a Google search and see how you do. Good luck.