Designed to replace the kerosene lamps with solar-powered ones

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NOCTURNAL SOLAR LIGHT BULB is a solar powered light made from regular used scraps and few cheap electronics components.The light charged during the day and give light for full night .It automatically turn on when it detects dark (Night ) and turned off when detects light (Day).

The aim of this project is to provide a low cost lighting solution for rural people by replacing their old kerosene lamps which produce unhealthy smoke.

In India, one of world's largest, most populated countries, over 74 million rural households live without power. Children study in harmful smoke,average people spends 5% of their income on lighting fuel,people burns wood for lighting.

A single kerosene wick burns an estimated 80 litres of fuel, producing more than 250 kilograms of carbon dioxide per year. Multiply that across the developing world and kerosene lamps emit 270,000 tons of black carbon annually – equivalent to 240 million metric tons of CO2.

To help people living in villages, I made this solar light bulb for providing a low cost solution by replacing their harmful kerosene lamps.This will empower the world's poor to replace kerosene with clean solar-powered light.I got inspiration from NOKERO.

I always prefer to make something from used things to recycle it. I made this solar light bulb by using used stuffs and few electronics components.Even you can get the components from your used solar garden lights.

Features :

1. One day charging can give light up to 20-22 lumens (about three times the brightness of a kerosene lamp) for the entire night.

2. A 2000mah AA battery can be charged fully in two days bright sun light.You can use the hanger as well as the multi purpose stand for charging.Just hang it on a wire out side or place it at your window.

3. Uses high quality AA NiMh battery which can work at least for 5 years.

4. Uses a high quality solar panel to charge the battery.

5. Automatically switches off in bright light to save charge and switch on in dark.

6. Battery over discharge protection circuit.

Advantages :

1.Improves literacy : Solar light bulb improves literacy, because people can read after dark more easily than they can by candle or kerosene lamp.

2.Saves Energy : As the light is bulb is charged through solar energy (free energy) it saves energy.

3.Reduces air pollution : Use of solar light bulb decreases the amount of local air pollution. With a decrease in the amount of kerosene used for lighting, there is a corresponding reduction in the amount of pollution produced.

4.Reduces greenhouse gases : Solar light bulb gives light with no carbon dioxide (CO2) emissions.

  • 1 × Solar Panel 2V
  • 1 × Straw Hat White LED 0.5W
  • 1 × Rechargeable AA / AAA battery NiMh
  • 1 × IC QX5252F Voltage Boosting IC / Joule Thief
  • 1 × Inductor 33uH

View all 11 components

View all 2 project logs

  • 1
    Step 1

    Drill Holes for Hanger :

    Drill two holes diametrically opposite, near the top portion of the container.

    It will used for mounting the hanger.

  • 2
    Step 2

    Make the hanger :

    First cut the hanger with the pliers back blades at the both ends.Now use the hanging part and keep the straight part for future use.

    Trim at the both end according to the height of hanger you prefer.In my case it was nearly 12mm.

    Bend at the both ends by using a nose plier.

    Then insert the end in to the container holes made earlier.

  • 3
    Step 3

    Solder the components :

    In order to make the finished circuit, I soldered the components onto a perforated board.

    I have attached a PDF copy of schematic.You can use it during the soldering.

View all 11 instructions

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