What is the difference between SMD and COB LED lights?

#1 Brief development of LED for illumination Generally Speaking, LED stands for Light-Emitting Diode. DIP The first LED designed for illumination was the dual in-line package (DIP) LED, which is also called a “straw hat LED.” Its light efficiency was relatively low at that time – only about 4-5 lumen per unit or 0.05-0.08 watt … Read more