Using the TESS LED chip, TESS LED Bulb is a sort of LED Bulb, which can emit diffferent colors such as warm white/cool white, red, green, blue and yellow, etc. Within TESS product range, now people can find the LED bulbs replacing the incandescent bulbs from 40W to 80W. To compare with the conventional incandescent and fluorescent lighting, TESS LED bulb has 3 to 4 times longer lifetime and there is no Mercury. Therefore, TESS LED bulb has various advantages like high energy efficiency, low power consumption, easy to install, lower maintenance cost and so on. That's why the TESS LED Bulb is suitable for museums, art galleries, cosmetic counters, school, universities, hospitals, conference, meeting room, show room, commercial complexes, factories, offices and more applications.