... good quality and high brightness.2. led with Low lighting attenuation,Conversion factor can reach 90%3. Good ... blue, green, yellow, orangle, warm/cool/pure white, bi-color, RGB application adervitising signs, circuit board, computer, monitor, portable ... telephone, traffic signal lights and automotive, channel letter lighting white color temperature 2700-3500k, 5500-6500k. 7000-8000k advantage of our ...