This sounds dramatically technical, but it is not. It's a very simple idea that originated in Brazil in 2002 and was now introduced to the Philippines with great success.

In 2002, Brazilian Alfredo Moser had the idea after a blackout in his company. He installed water bottles on the roof, filled it with water and some bleach and there was the enlightment.

more on that here

a real nice easy to do invention

from the article i am guessing these dont work at night

I guessing it has nothing to do with thailand.

from the article i am guessing these dont work at night

that's right, but most slum-huts and even compies' service centers are pretty dark in the day or they have lots of neon light to keep it lght during the day. This easy cahnge helps to save energy costs.

I guessing it has nothing to do with thailand.

it will be adopted, don't worry.

Can u imagine bleached fill bottles on roofs tiled with asbestos?

A super cheap light-pipe http://en.wikipedia.org/wiki/Light_tube comes complete with built in leak.

Can u imagine bleached fill bottles on roofs tiled with asbestos?

There need to be only small quantity of bleach in the water.

Most roofs of the poor, or even the huts for construction workers are not using asbestos.

Water bottles filled with bleach !!

What happens when one splits and your stood underneath doing some electricial work, course that will never happen will it lol lol

Great idea NOT

Is there a patent on the "invention" what the ******* is happening, this must be 1st April

from the article i am guessing these dont work at night

Look at the picture, is that electric cable directly under the light source !!

Great idea Lol Lol

There is no electricity or other power involved.

These are very simple light tubes.

The bleach is put in simply to stop algae etc. forming in the water.

Full marks to the guy who thought of using cheap recyclable items for this purpose. Anyone who has ever been in a slum house (and I've been in hundreds) will know what dark and gloomy places they are.

this project is supported by the government in the Phils, also by the electric authorities nationwide. People are paid by the government to install the bottle bulbs. Now we're talking about millions of such bottles in use within the next two years - this only in the Phils. First target of one million was set for March or April next year and it seems that this will be reached far sooner.

Of course, the common electric bulb businesses will suffer.

Firstly, many countries in Europe will stop permission for regular bulbs, starting this year.

Secondly, neon and energy saving bulbs have also issues with affecting radiations as proven by scientists.

Must be hard for the dealers and factories though, but reality is as it is, - simply reality.

Sometimes the simplest things can be a great and can be considered as a kind of invention. It also helps saving energy and money.

There will be coming more about similar projects.

I saw this on Channel News Asia. They were surprisingly bright.

I was really up for this. Then I remembered I live in a condo. Doh.

Seriously though, all kudos to the guy.When I think off all the shacks I have walked into that this could improve,,,,

Wow they invented skylights, don't tell them that they have been around for several hundred years OK.

A super cheap light-pipe http://en.wikipedia.org/wiki/Light_tube comes complete with built in leak.

These were advertised heavily years ago back in the US. I think it's a great idea, but they were not cheap. I had a sunlight at the time in a hallway and was dealing with leaks around it...so decided not to install the light tube!

I dunno, but the cost of cutting a hole in the roof, the new rust centers that will spawn (and later have to repair as the zinc coating on the roofing material has lost continuity), sealing the opening against the elements, the bottle, the bleach, would probably be equivalent, or more than the electricity saved, and of course it doesn't work at night.

Then again, funneling the rain water in and catching it in a bucket could save on water costs. Could even have a shower during the monsoon.

Moved to DIY forum.

Water bottles filled with bleach !!

What happens when one splits and your stood underneath doing some electricial work, course that will never happen will it lol lol

Great idea NOT

Is there a patent on the "invention" what the ******* is happening, this must be 1st April

what happens when it rains, and there's a leak in the roof?

There is no electricity or other power involved.

These are very simple light tubes.

The bleach is put in simply to stop algae etc. forming in the water.

Full marks to the guy who thought of using cheap recyclable items for this purpose. Anyone who has ever been in a slum house (and I've been in hundreds) will know what dark and gloomy places they are.

Darul, your post says there is no electric involve, just look at the picture on the post,( below the water bottle is two electric cables\)

Water.bleach NEAR electric shpuld never be allowed or condoned, no ifs or buts its a death trap waiting to happen

Wow they invented skylights, don't tell them that they have been around for several hundred years OK.

Yes , great invention isn't it , hahaha. But what did they invent ? That you can do the same with water and glass ? You now allready have lighttubes which have lines go down upto 10m orso with bends in it and still have light around ( also sunlight , non elec ) . I see nothing new in this . If the bottle is filled with a luminous liquid enough to have light 4 more hours after dark , then we can talk about something new .

There is no electricity or other power involved.

These are very simple light tubes.

The bleach is put in simply to stop algae etc. forming in the water.

Full marks to the guy who thought of using cheap recyclable items for this purpose. Anyone who has ever been in a slum house (and I've been in hundreds) will know what dark and gloomy places they are.

Darul, your post says there is no electric involve, just look at the picture on the post,( below the water bottle is two electric cables\)

Water.bleach NEAR electric shpuld never be allowed or condoned, no ifs or buts its a death trap waiting to happen

Mmmh,I guess in those slums where those lights are usefull are many more things that are not allowed or condoned.

There is no electricity or other power involved.

These are very simple light tubes.

The bleach is put in simply to stop algae etc. forming in the water.

Full marks to the guy who thought of using cheap recyclable items for this purpose. Anyone who has ever been in a slum house (and I've been in hundreds) will know what dark and gloomy places they are.

Darul, your post says there is no electric involve, just look at the picture on the post,( below the water bottle is two electric cables\)

Water.bleach NEAR electric shpuld never be allowed or condoned, no ifs or buts its a death trap waiting to happen

Mmmh,I guess in those slums where those lights are usefull are many more things that are not allowed or condoned.

Child to daddy, "why are you shaking and I am getting tingling all over" daddy please wake up, Comon sense , sorry dont exist in these places? Make any excuse you want, it wont wash really. Its up to them,go for itt !!

Are you really saying even " the peasant" dont really know the dangers assoicated with this stupid idea

There is no electricity or other power involved.

These are very simple light tubes.

The bleach is put in simply to stop algae etc. forming in the water.

Full marks to the guy who thought of using cheap recyclable items for this purpose. Anyone who has ever been in a slum house (and I've been in hundreds) will know what dark and gloomy places they are.

Darul, your post says there is no electric involve, just look at the picture on the post,( below the water bottle is two electric cables\)

Water.bleach NEAR electric shpuld never be allowed or condoned, no ifs or buts its a death trap waiting to happen

Mmmh,I guess in those slums where those lights are usefull are many more things that are not allowed or condoned.

Child to daddy, "why are you shaking and I am getting tingling all over" daddy please wake up, Comon sense , sorry dont exist in these places? Make any excuse you want, it wont wash really. Its up to them,go for itt !!

Are you really saying even " the peasant" dont really know the dangers assoicated with this stupid idea

Why so negative - what part of simple light-tube don't you understasnd?

The original link in #1 is dead, is this just a sky light that has been common in houses for years. Not Thailand though, have to import.