... Functions of RGB LED Bulb, 2.4G LED Bulb1. It is a high-performance RGB led touch remote bulb, adopting the most advanced PWM control technology ... nanometer coolant,light transmittance over 85%,light transmits evenly.4. With the technology of the 2.4G high frequency wireless remote control, it ... within 3 seconds) , the moment you see the light is on.The LED bulb blinks twice slowly when it is done.Code ...