Simple Homemade Lightbulb

Why did I make this?

Every year the cost of electricity rises. Many a times, there are long power cuts in the rural areas too. The poor cannot afford tubelights and their homes are filled with darkness. This lightbulb was invented by a poor man in the Philippines, and I was very inspired by him.

This is mainly to be used in rural and/or poor homes.

It uses no electricity, just simple household items and takes only a few minutes to make.

Moreover, it produces the light of a 60-watt bulb!

Keep in mind, a hole has to be made in the ceiling so choose where you want to put this before beginning.

So what are you waiting for, let's get started!

All you need is :

1) Clean soda plastic bottle (Sticker removed)

2) Water (Preferably distilled)

3) Bleach *I forgot to take a pic*

Optional :

A funnel to pour the liquids

For fixing :

1) A scrap asbestos sheet *not pictured*(Or any other metal sheet)

2) Rubber sealant *not pictured

That's it!

The water is used to spread the light over a large area.

Fill the bottle almost till the top. (Not too much! We need some space for the bleach.)

Add two or three teaspoons of bleach to the water and screw the cap on.

This helps prevent growth of algae in the bottle. (Ewwww.....)

For this part you need to find a suitable place in the ceiling.

Make a hole in the asbestos sheet the diameter of the bottle. Push it halfway through, and use rubber sealant fix it in place. Then, fix the asbestos sheet in the ceiling

Sorry for the lack of pictures but-

The end result is an amazing cheap bulb which :

a) Gives light equivalent to a 60-watt bulb.

b) Lasts for 5 years or more.

c) Requires no maintenance.

The downside is that you can only use it during daytime :( (You can still use it in an attic or any dark space)

Thanks for seeing this instructable and favourite. Also, any suggestions will be welcome :)