COST REDUCTION OF COLOR CHANGING LAMP BY ADOPTION OF ANALOG CIRCUIT

He consumers are gradually shifting to LED lamps from the traditional incandescent and CFL lamps as t he LED lamps not only are more efficient than the conventional light sources but their lifetime is also more. With growing demand,there have been several developments in the field of LED lighting to suit the consumer needs and the color changing lamp is one of them. LED lamps are available in two colors, warm white and cool white. A consumer may prefer a particular color or the other depending on his choice. The color changing lamp allows the user to switch between the two colors in the same lamp instead of using two different lamps. The color changing lamp which is cur rently available in the market uses a microcontroller to switch between the colors, hence has a higher cost which limits its use.One way of making the lamp popular is to reduce the cost. This paper examines switching from microcontroller based circuitto an alog circuit to achieve the change of color in the lamp, thereby reducing the cost of the lamp