LED Lamp With Power Supply Used In The Project

1, what is constant-voltage power supply

Input voltage within the specified range, when load current at the rated range, output voltage remains constant.

2, what is the constant current power supply

Input voltage within the specified range, the output current is constant, and the output voltage as load sizes vary within a certain range.

3, under what conditions a constant voltage power supply, what choice under the conditions of constant current power supply?

A, use in a permanent place to use a constant voltage and constant current power supply, relative brightness uniformity ratio of power supply with constant current constant voltage power supply with good results.

B, using gradients, and scanning sites, better use constant voltage power supply.