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1. How does the product benefit the environment?
The LED Home Light is an efficient, reliable and long lasting light which will eliminate the need to use environmentally polluting and dangerous kerosene for lighting.
2. How does the LED product far outshine current sources of lighting in rural areas?
Existing lighting in rural areas is either grid powered, if available, or kerosene, with a government subsidy. The first method is unreliable and suffers breakdowns, failing most often in the rainy season when needed most, as well as being expensive to install and maintain. Kerosene lighting is not just polluting; it produces low quality illumination and may cause health problems. Kerosene is often difficult to procure.
3. Are these LED Home Lights actually being used today?
Yes, in Koraput, Orissa with nearly 8,000 lights, in Afghanistan with 8,500 lights and in Malghat, Maharashtra, Paderu, Visakhapatnam, Ranchi, and Jharkhand as well. They are also being used in Kenya and Cambodia. All these projects have been successfully completed and the LED Home Lights have been working very well for some time.
4. Is the price of the LED Home Light advantageous compared to the current subsidy on kerosene from the state government?
The kerosene subsidy is approximately Rs 75 a month (Rs 900 a year) for each family, for 3 liters of kerosene a month. With just one year's kerosene subsidy we can supply a long lasting LED Home Light to each family and include charging the batteries for a year.
5. Explain the comparative characteristics of kerosene lamps, light bulbs and LED lights.
Lamps using kerosene provide low quality illumination, are highly polluting and dangerous, pose a health hazard and depend on a steady supply of kerosene. The incandescent light bulb (also called simply light bulb) works by incandescence which is the release of electromagnetic radiation, usually visible radiation, from a body due to its temperature. Approximately 90% - 95% of the power consumed by an incandescent light bulb is emitted as heat, rather than as visible light. For a given quantity of light, an incandescent light bulb, which has 5% efficiency, produces more heat and consumes more power than a LED light. A 40 watt light bulb of 500 lumens has an efficacy which can be expressed as, 12.5 lm/W, while a 5 watt LED light of 545 lumens has an efficacy of, 110 lm/W. This means it has a 90% energy saving over a light bulb!
6. Can you provide a ball park figure of the total amount that the government will save by implementing this project?
If the government provides 1 crore LED Home Lights, one to every needy family in a typical state, they will save roughly Rs 900 crores on kerosene subsidy a year. There will also be an economic improvement in productivity to the tune of at least Rs 3,000 to Rs 5,000 crores, as well as the social benefits to health and education in rural and tribal areas as the LED Home Light enables people to continue working and studying after the sun sets.
7. What is the maximum life of the battery, LED and other components?
The working life of the LED Home light is approximately 10 to 15 years, while the LED itself can last for more than 30 years. Unlike light bulbs LEDs don't give up toward the end of their life, but only reduce intensity by 10% - 20%, which may not even be noticeable for many applications. The battery life will normally be 2.5 - 3.5 years depending on the type and quality of the battery and how well they are maintained.
8. What guarantee is offered on the product in terms of lifetime, usage and durability?
The LED Home Light will have a one year guarantee against any manufacturing defect and a further 3 years of limited guarantee* for certain parts. The battery will have a 1 year manufacturer's guarantee.
9. Explain carbon credits and how they can be incorporated in this project and prove to be lucrative.
Every single LED Home Light can generate approximately US $7 to US $10 worth of carbon credits a year in Gold* standards. This means that the capital cost of the light is recoverable in approximately 2 to 3 years. Applying for carbon credits will only be feasible for installations above 10,000 LED Lights, as the assessing and auditing costs to obtain the carbon credits will be not viable for fewer installations. *The Gold Standard Foundation offers a quality label to CDM/JI and voluntary offset projects, fetching premium prices. Renewable energy and energy efficiency projects with sustainable development benefits are eligible. The Gold Standard is endorsed by over 44 non-governmental organizations worldwide. Gold Standard projects are preferred by a range of government and private sectors.
10. How much power is required for a full charge of the LED lights?
The LED Home Light uses about 15 watts of power for one complete charge which represents approximately 10 paise if the kilowatt price is Rs. 6.
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Shenzhen Master Sun Opto-electronics Co., Ltd.

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