The Solar Bottle Bulb, as it has also been called, is installed in the roof of homes with the purpose of refracting sunlight in order to light up a room. The project’s innovation lies in its utilization of cheap, durable and readily available materials to produce high quality natural lighting enabling the urban poor to have access to an affordable, environmentally friendly long-term alternative to electric light for use during the day. The Liter of Light is a zero-carbon-emitting alternative to the daytime use of electric or hydrocarbon-burning (kerosene, gas) illumination. The materials used in the technology are readily available, the plastic bottles as scrap, needing no additional manufacturing resources. This inexpensive technology allows most slum households to install it with the assistance of entrepreneurs from their communities. Once installed, the bottle is estimated to last about five years before being replaced. The electrical power consumed, at significant cost in carbon dioxide emission and money, by an electric bulb producing comparable light (say 55 W incandescent or 20 W CFL) is substantial.

1. A
PROJECT( STAGE-I)SYNOPSIS
ON
LIGHT FOR SLUMS
Submitted in partial fulfillment for the award of Degree of
Bachelor of Technologyof Rajasthan Technical University, Kota
2015-16
Sumbitted to: Submitted by:
Mr. Harbeer Singh ASHISH KUMAR LODHA(PCE/EE/12/048)
Project Co-ordinator ARVIND KUMAR SHARMA(PCE/EE/12/047)
Dept.of ElectricalEngg. ARVIND KUMAR(PCE/EE/12/046)
AVINASH KUMAR PANCHOLI(PCE/EE/12/050)
DEPARTMENT OF ELECTRICAL ENGINEERING
POORNIMA COLLEGE OF ENGINEERING
SITAPURA, JAIPUR (Raj.)-302022

2. Introduction:
The Solar Bottle Bulb, as it has also been called, is installed in the roof of homes with the
purpose of refracting sunlight in order to light up a room. The project’s innovation lies in its utilization of
cheap, durable and readily available materials to produce high quality natural lighting enabling the urban
poor to have access to an affordable, environmentally friendly long-term alternative to electric light for use
during the day.
The Liter of Light is a zero-carbon-emitting alternative to the daytime use of electric or
hydrocarbon-burning (kerosene, gas) illumination. The materials used in the technology are readily
available, the plastic bottles as scrap,needing no additional manufacturing resources. This inexpensive
technology allows most slum households to install it with the assistance of entrepreneurs from their
communities. Once installed, the bottle is estimated to last about five years before being replaced. The
electrical power consumed, at significant cost in carbon dioxide emission and money, by an electric bulb
producing comparable light (say 55 W incandescent or 20 W CFL) is substantial.
Components Used:
 Plastic Bottle
 Galvanized Iron
 Rubber Sealant
 Distal Water
 Bleach
 Marine Epoxy
 LED’s
 Light Intesity sensor
 3 Pin Sliding Switch
 Battery
 Solar Array
 Resistors and Diodes
 Other tools

3. Block Diagram:
Advantages:
 Solar Bottle Bulb does not have any carbon emissions when compared to any conventional light.
 Solar Bottle Bulb is a source of livelihood for the local unemployed people.
 It is very economic and reliable.
 It reduces the impact of global warming on earth.
 Disposed plastic is up-cycled.
Disadvantages:
 Needs appropriate durable, leak-proof, space-filling glue.
 Usable at small scale only.
 For night solution, a bulky and expensive solar system is required.
Future Scope:
 It is a very wide project which is implemented in many countries like Argentina, Brazil, Nepal,
India, Pakistan, Bangladesh, Kenya, Egypt, Peru, Zambia etc.
 It has a wide future scope in SLUMS in all over the world to light up the life of poor people.