Guide by Liter of Light Italia
Light Box
Make your own solar light
The Light Box is a compact and versatile solution for lighting domestic,...
Solar Bottle Bulb
Free daylight for your home
| Done in | 180mins |
|---|---|
| Skill level | medium |
Light up dark areas in your home during daytime using this green and sustainable concept. Recycle used clear plastic soda bottles, add water and bleach, then install it into your roof. After installation this solar light bulb can provide approximately 55 watts of light from the sun!
Published under CC:BY-NC-SA by
Liter of LightWhat you need
PET soda bottle 1 litre plastic bottle.
Pencil
2 Glavanized Iron Sheets 10x10 inches, corrugated or flat - has to be the same form like your roof sheets
Gun with Rubber Sealant If you do not have a gun, you can also apply the sealant with a putty
Bleach
Filtered water
Paper One sheet to make the patterns
Riveter
Rivets
Electric Power Drill
hammer
Sandpaper
Chisel
Curve Metal Sheet Cutter
How you make it
At the center of your metal sheet, draw 2 circles
Trace 2 circles on your metal sheet. The first / outer circle has a similar circumference like the bottle, the other / inner one is 2mm smaller. Use a paper pattern for this.
Cut out the inner smaller circle
Cut the 1 cm difference radially, make strips and bend them upwards, perpendicular to the metal sheet
Use Sandpaper and rub the surface of the bottle
Scratch the surface around the upper third of the soda bottle where the metal sheet will be placed, to allow the rubber sealant to stick better.
Insert the bottle into the metal sheet until the upper third.
Apply rubber sealant on the strips above and around the area below. Wait to dry
Fill up the soda bottle with filtered water and ~10 ML or (2 capfuls) of bleach.
Cover With Its Original Cap
Your solar bottle bulb is now ready for installation!
How you install it
Carefully climb the roof. Cut a hole in the roof, similar to the bottle circumference
Place the solar bottle bulb into the hole.
Make sure the bottle is firmly in place.
Drill 4 holes on each side of the metal sheet. Put in rivets
The holes have to go through the roof.
Use a cordless power drill and a riveter for this step.
Apply rubber sealant around all edges of the metal sheet of the solar bottle bulb to avoid leakage. Make sure to cover the rivets.
Place a protective plastic tube on the bottle cap and apply rubber sealant
Well done. You have successfully installed your solar bottle bulb!
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