LED Bottle of Light

Overview: Plastic Bottles can be installed into the grooves of houses in order to transmit light inside without the need for electricity. Recent developments in LED, Solar cells and rechargeable batteries mean we can take this further and install solar rechargeable lights in houses but also in alleyways and thoroughfares. Having lit areas can significantly improve the safety of women at night.

Equipment Provided: Plastic bottles, cardboard box, light meter/mobile phone, scissors, tape. LEDs, Solar cells, rechargeable batteries, wires. Possible soldering irons and solder.

Health and Safety: You must carry out your own risk assessment (Rubbish Science accept no liability)  Note: Be careful when cutting.  Soldering irons can cause burns.

Things you might need to know / Questions you might ask:

  • How can you maximise the charging from the solar cell?
  • What size bottles work best?
  • Should you use one or more LEDs?
  • Should your LEDs be wired in series or parallel?  (Parallel will be brighter, but wont be lit for as long)
  • How can you weatherproof your bottles?
  • Can you combine this system with the Bottle of Light (Litre of Light?)

Prototyping: Try to answer the questions above using small scale experiments

Modifications:How might you modify your designs based on what your preliminary results look like? What have others done and what can you learn from them?

Prediction: What do you think will happen and why?

Do it: How are you going to see if your light is successful?

What happened?: Was your light effective?

Tell Someone: Explain what you did and why you felt your LED was effective. Listen to others, do they have any good ideas?

What did you learn? What do you know now that you didn’t know before you started this investigation?

Extension/Modify/Do it again: How could you extend this to produce a commercial LED installation business?