[allot2learn]

Now here is a novel idea. Fill a 2ltr bottle with water, add a drop of bleach to stop algea and you have a free light bulb equivalent to 60watts.

http://www.bbc.co.uk/news/magazine-23536914

[GrannieAnnie]

One of our members on here has lights like that in his shed, but I can't remember who it is!

[sunshineband]

That is interesting -- never seen that before 

[Yorkie]

Can't quite believe that something that simple would actually work 

(But will give it a go!)

[compostqueen]

I think it involves making a hole in the shed roof 

[arugula]

Great idea in principle, but I wonder how well it works in limited light, as in when there is cloud cover.

[RJR_38]

Is a this on a tv programme a while ago. The use it in the slums in Brazil and South Africa to make the houses bright enough to see in. The houses are built so close together there is minimal natural light.

[Yorkie]

I think it involves making a hole in the shed roof 

Ah, I see.

I was planning on just putting the bottle near the shed window ... guess that won't work then.

[BobE]

A neigbour has a 12 volt photovoltaic panel that he bought from Halfords (I think £25ish).  He feeds that to a car battery and has 12 volt lights in his workshop. 

[dugless]

why would I want lighting for my lotty shed? but if I did I would use a 12v solar panel and a 12v lamp.

[composthappens]

Fabulous idea but i think i would just replace the shed roof with clear polyplastic, you an buy that in sheets big enough to cover a 6 x 4 ft pent roof. plus it would be leak proof.

[dugless]

Fabulous idea but i think i would just replace the shed roof with clear polyplastic, you an buy that in sheets big enough to cover a 6 x 4 ft pent roof. plus it would be leak proof.

QUITE

[Yorkie]

Fabulous idea but i think i would just replace the shed roof with clear polyplastic, you an buy that in sheets big enough to cover a 6 x 4 ft pent roof. plus it would be leak proof.

Have you seen my DIY skills??! 

[8doubles]

What happens to the waterproof joint when the bottle and any water around it freezes and thaws a few times ?

Frost will eventually level mountains so corrugated roofing may not last long.

Great idea if you live in a warmer climate !