LED Greenhouse

The process of photosynthesis requires a substantial amount of sunlight. However, this sunlight is being blocked by the sheer number of particles in the air from pollution. This makes growing plants in big cities where pollution is a common thing an arduous task especially if the gardener lives in a high building where the sun rays and space are limited. The LED Greenhouse was designed to counter this exact situation by using artificial light to substitute sunlight and to encourage more gardening among city dwellers. The materials used for the LED greenhouse is a greenhouse socker, a red LED strip, some pots and seeds which costs around 70 MYR. It works as a normal greenhouse during sunny days absorbing sunlight and absorbs artificial light during hazy days which is better for plant growth. The reason artificial light is only a substitute is because it uses too much electricity if solely depended on and is only better at plant growth if used supplementally. LEDs are the chosen artificial light since they are very efficient at plant growth and energy efficient. A study found that the colour of artificial light affects plant growth, so an experiment was carried out. It was found that the plant grown by the red LED was the highest since chlorophyll strongly absorbs red light, so it was chosen as the colour of our LED. Our project is very marketable to homeowners because of its small size.