Constant Voltage Design (Without Built-In IC)
Most of the LED strip lights are using this design. It is a simple design. It is made by PCB, LED, and resistances. The strip lights can make by different types of LED chips, such as SMD2835, SMD5050, SMD5630, etc.
Constant Current Design (With Built-In IC)
Some high request LED strips are using IC to control the current of the led strips. It not only includes PCB, LED, resistances, but also has IC. This LED strip's brightness in the same led strips will be better than not using IC strips. But the IC cost is high, this constant current strips always cost higher than the normal LED strips.
