THE PERFORMANCE OF NEWLY DESIGNED ECONOMIC GRAVITY LIGHT

The desire to reduce the air pollution due to coal burning drives the need to generate power via green approach. Gravity light relies on the gravitational force to generate electricity is known as one of the pollution-free method. This study proposed a new and economical design of gravity light by using the simple apparatus like bicycle chain, conveyor belt and gear. The performance of the self-fabricated gravity light was measured in terms of power generation and the response of LED bulb. Result showed that minimum 0.8 kg of load was required to generate the power and additional 600g of load was needed to light up the bulb brightly. As a conclusion, the self-designed gravity light was able to generate 2 mW of power, which was sufficient to turn on the LED bulb brightly. It is recommended to further improve the performance by using higher load to generate more power. Besides, a series gear system is suggested to replace the conveyor belt to avoid slipping condition and reduce the falling rate of the load, which would increase the power generation