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Picture of How to build a SOLAR BOTTLE BULB
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Light up dark areas in your home during daytime using this green and sustainable concept. Recycle used clear plastic soda bottles, add water+bleach, then install. After installation this solar light bulb can provide approximately 55 watts of light from the sun! 

The comments below have noted that this is like a solar tube or deck prism. 

The communities who benefit from this idea live in areas where the houses hardly have windows and live in darkness even during daytime. Their solution up until this innovation was to turn on the light bulb and use electricity.



Source: www.isanglitrongliwanag.org

Materials:
*PET soda bottle
*Galvanized Iron (GI) sheet
*Rubber sealant
*Bleach
*Filtered Water
 
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Step 1: Cut approximately 9 x 10 inches of GI sheet (corrugated or flat)

Picture of Cut approximately 9 x 10 inches of GI sheet (corrugated or flat)
(Filipino: Gumupit ng yero na may sukat na 9 x 10 inches.)


*Here is a how-to video

Step 2: At the center of the GI sheet, draw 2 circles

Picture of At the center of the GI sheet, draw 2 circles
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(Filipino: Sa gitna ng yero, gumuhit ng 2 bilog (labas: pareho sa sukat ng bote; loob: mas maliit ng 1 cm). Gupitin ang mas maliit na bilog.)

Step 3: Cut the 1 cm difference radially, making strips and bend upwards, perpendicular to the GI sheet

Picture of Cut the 1 cm difference radially, making strips and bend upwards, perpendicular to the GI sheet
(Filipino: Gupitin paikot ang natira na 1 cm sa maliliit na bahagi at itupi pataas, salungat sa yero.)

Step 4: Using sandpaper, scratch the surface around the upper third portion of the soda bottle where the GI sheet will be placed, to allow the rubber sealant to stick better

Picture of Using sandpaper, scratch the surface around the upper third portion of the soda bottle where the GI sheet will be placed, to allow the rubber sealant to stick better
(Filipino: Gamit ang sandpaper, kuskusin ang ibabaw sa may ikatlong bahagi ng bote kung saan ilalagay ang GI sheet para mas dumikit ang rubber sealant.)

Step 5: Insert the bottle into the GI sheet until the upper third. Apply rubber sealant on the strips above and around the area below. Wait to dry

Picture of Insert the bottle into the GI sheet until the upper third. Apply rubber sealant on the strips above and around the area below. Wait to dry
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(Filipino: Ipasok ang bote sa gitnang butas ng yero hanggang sa itaas na ikatlong bahagi. Lagyan ng rubber sealant ang itaas at ibaba ng pinagkabitan.)

Step 6: Fill the soda bottle with filtered water and ~10 mL (2 capfuls) of bleach. Cover with its original cap

Picture of Fill the soda bottle with filtered water and ~10 mL (2 capfuls) of bleach. Cover with its original cap
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(Filipino: Punuin ang bote ng filtered na tubig at ~10 mL na bleach (2 sukat gamit ang takip). Ilagay ang takip.)


Step 7: The solar bottle bulb is now ready for installation!

Picture of The solar bottle bulb is now ready for installation!
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(Filipino: Ang solar bottle bulb ay handa nang ikabit!)

(Proceed to next step for the installation.)

Step 8: Cut a hole on the roof, similar to the bottle circumference

Picture of Cut a hole on the roof, similar to the bottle circumference
(Filipino: Gumawa ng butas sa bubong, pareho sa sukat ng bote.)

Step 9: -Place the solar bottle bulb into the hole. Make sure it is firmly in place

Picture of -Place the solar bottle bulb into the hole. Make sure it is firmly in place
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(Filipino: Ilagay ang solar bottle bulb sa butas. Siguraduhin na maayos ang pagkalagay.)

Step 10: Drill 4 holes on each side of the solar bottle bulb using Bosch lithium-ion cordless drill and put in the rivets

Picture of Drill 4 holes on each side of the solar bottle bulb using Bosch lithium-ion cordless drill and put in the rivets
(Filipino: Magbutas ng apat sa magkabilang gilid ng solar bottle bulb gamit ang Bosch lithium-ion cordless drill at lagyan ng rivets.)

Step 11: Apply rubber sealant around all edges of the GI sheet of the solar bottle bulb to avoid leakage. Make sure to cover the rivets

Picture of Apply rubber sealant around all edges of the GI sheet of the solar bottle bulb to avoid leakage. Make sure to cover the rivets
(Filipino: Maglagay ng rubber sealant sa lahat na gilid ng GI sheet ng solar bottle bulb upang maiwasan ang pagtulo.)

Step 12: Place a protective plastic tube on the bottle cap and apply rubber sealant

Picture of Place a protective plastic tube on the bottle cap and apply rubber sealant
(Filipino: Lagyan ng plastic tube at rubber sealant ang takip ng bote.)
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Jmclyesterday
VinodM22 days ago

Dear

I have tried the same but It's not work. may I was wrongly do the procedure from filling water + bleaching powder. I want to know more descriptive information i.e. how much water and bleaching powder required and how much time it will keep in sunlight. (i.e. quantity, time required)

is any gas is generated in the solution ? questions are created while bleaching powder is mix in water

in anticipation

EricB101 month ago

If you are in a temperate climate where freezing during the winter months may be a problem {tool sheds, garages, & etc.}, DON'T use water as you medium. To avoid the medium from freezing, JUST use an edible grade of mineral oil (~$5.00/Liter) as your medium! It has a freezing point of -20 degrees F or -30 degrees C. The refraction of the light would not be much different!!

MartijnD2 years ago
I would add some salt and alcohol too, if it freezes the bottle will suffer less forces because the water will not freeze which results in ice; ice has a lower density than water so the volume will go up, stress on bottle where the bottle is inside the roof-panels. Adding fluorescent components wiil make it glow a little, not enough to see what you would be doing but maybe nice as an orientation light. These kind of bottle lights can also be placed in a wall, I saw it in one of the Transformer movies near the Pyramids where megan and shia hide and are found by a bug-transformer, these look more like glass wine bottles glued in a cement wall, looks pretty cool too!

If you are in a temperate climate where freezing during the winter months may be a problem, DON'T use water as you medium. To avoid the medium from freezing, JUST use an edible grade of mineral oil (~$5.00/Liter) as your medium! It has a freezing point of -20 degrees F or -30 degrees C. The refraction of the light would not be much different!!

MartijnD2 years ago
I would add some salt and alcohol too, if it freezes the bottle will suffer less forces because the water will not freeze so the water will not turn to ice; ice has a lower density than water so the volume will go up, stress on bottle where the bottle is in contact with the roof-panels.

Adding fluorescent components wiil make it glow a little, not enough to see what you would be doing but maybe nice as an orientation light.

These kind of bottle lights can also be placed in a wall, I saw it in one of the Transformer movies near the Pyramids where megan and shia hide and are found by a bug-transformer, these look more like glass wine bottles glued in a cement wall, looks pretty cool too!

If you are in a temperate climate where freezing during the winter months may be a problem, DON'T use water as you medium. To avoid the medium from freezing, JUST use an edible grade of mineral oil (~$5.00/Liter) as your medium! It has a freezing point of -20 degrees F or -30 degrees C. The refraction of the light would not be much different!!

jopeyemi12 months ago
Great how/where can l get bleach. My email jopeyemi60@yahoo.com or stanleyboy39@yahoo.com pls help me

You can ALSO use some finely cut up pieces (1-2 oz.) of copper wire placed in the solution if you absolutely don't have access to any liquid chlorine bleach!

Another substitute is 15 ml of an Iodine Solution instead of chlorine bleach may be used. Iodine can be found on most medical shelves in many types of stores!!

Both of these things can help to prevent the growth of algae in any water in the bottle!!!

Clorox

ArneE11 month ago

will indirect solar radiation be enough to light the bottle? for instance could this technique be used to light a room without a window by placing the bottle in the wall between the rooms?

anya.nolasco2 months ago

can you use it as a amplify for lights???

AKHIL JIJO4 months ago

will it work at night

Not without a light source to shine on the bottle, which kind of defeats the purpose

khrope.medo3 months ago
As for the bleach - is it hypochlorous acid or hydrogen peroxide?

The only purpose of the bleach is to keep algae and other fungi from growing in the water over time

rrese1 year ago

whether it will still be lit if I put it in the garden? with poles for example, as a replacement for garden lights?

Choclinda rrese7 months ago

It won't work in the dark.

What will work is a battery operated headlamp around the clear bottle of water. Light facing the water. Try a clear milk jug for even more light. The water "magnifies" the light.

What will work is a battery operated headlamp around the clear bottle of water. Light facing the water. Try a clear milk jug for even more light. The water "magnifies" the light.

mahesh burse7 months ago

will it work at night???????? Upto how much time a bottle will go????? any thoughts.......

It is run by sunshine. If it is dark outside, it won't light your room.

it does not work at night. (unless you got streetlights outside though the resulting lumination would be really dim compared to that of at day) and it only refracts sun light.

I doubt very much that street lights would produce enough light to penetrate the bottle.

Obviously it doesn't work without natural light. It's the light outside that shines through the water in the bottle that creates the light. The bottle will work endlessly unless it's broken.

This is being done in South Africa where it is very successful as there is abundant sunshine.

if it has solar panel and battery, it can be used at night, and even can charger small device like phone ,mp3 etc
optional: remote control, usb port ,
let bring light to life .

lovotor03@lovotor.com

solar powered flashing light.jpg细节.jpgsolar led light.jpg
paparod485 months ago
I did what your instrutions are . But doesnr work

It will not work in the dark. It must be sunny outside.

22540521704 months ago
A good way to save electric power
AKHIL JIJO4 months ago

will it work at night

Where can i find a plastic tube? Ive been looking everywhere for something similar to old film containers but havent found anything similar. Any advice?

Buy Coke or Sprite 1.5L.

Buy Coke or Sprite 1.5L.

Buy Coke or Sprite 1.5L.

Nicholas Shake11 months ago

Are you going to be traveling to Taos soon? I am not sure if I am asking the right person :-)

I don't think you need anyone to travel to Taos. You can simply make it yourself with an empty clear plastic bottle or container.

RE: Choclinda

Lol!! I obviously should have been more specific.

The man who invented this special light technology was to attend a conference here in Taos and I was wondering if the author was the same person. I agree that anyone could make this with this Instructable or a tutorial.

And yes, the man responsible for this technology did in fact speak at the conference and I was lucky enough to see him.

Sorry for any confusion. Which is why I originally had asked if this was in fact the same person.

:-)

is it ok not to put it in a bottle?

with no bottle, you just have a hole in the roof, so do NOT skip that step.

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