First, determine whether the lamp is constant voltage or constant current, which can be judged according to the parameters marked by the lamp. If the marked input voltage is DC12V/24V, it is a constant voltage lamp, then select a constant voltage dimming led power supply for dimming, if the lamp marked input current is a constant value, such as 600mA, the input voltage is a range value, such as 12-20V For constant current lamps, select a constant current dimming power supply for dimming.

Then determine whether the lamp input is 12V or 24V? Then select the dimming power supply corresponding to the output voltage; when selecting the corresponding dimming power supply according to the lamp power, we generally recommend: the power of the constant voltage dimming power supply * 0.8≥the lamp power. In order to prevent the lamp from heating for a long time, the power will increase and the power supply will be damaged.

Frequently Asked Questions: How much power constant voltage led power supply should the 20m light strip choose?

Common light strips belong to constant voltage, depending on whether the input is 12V or 24V, and then calculate the power of the lamp according to the power parameter of the light strip and multiply it by the length of the light strip, and finally decide how much power constant voltage power supply to choose.

More information if you would like to know Smarts power LED driver, please login https://www.smarts-electronics.com/ Or contact with Mr. Steven(skype: steven821228 mail:sales1@smartselectronics.com)