Luminous uniformity has two meanings:
1) the brightness between the lamp bead and the lamp bead should be consistent, which is related to the quality of LED lamp bead.
2) the brightness of the LED strip shall be consistent at the beginning and end, which is related to the pressure drop of the LED strip.
The LED strip needs to be powered by a power source to emit light. When the voltage drop of the LED drive power source is relatively large, the brightness of the LED strip that is connected too long will be inconsistent.