can_you_parallel_2_mean_well_led_drivers

Can you parallel 2 Mean Well LED drivers?

26 August 2021

Technical question of the week: Can I parallel the output of 2 MEAN WELL HLG series LED drivers?

Switchmode response:

Unfortunately, this is not possible. In order to parallel two MEAN WELL LED drivers both would need to have a ‘current sharing’ function.

MEAN WELL HLG-320H
MEAN WELL HLG Series LED Driver

 

There is a general belief that you can connect any two power supplies in parallel if you use two diodes to isolate the supplies.

This is false.

Using diodes to isolate the supplies actually gives them redundancy. In other words, if one supply fails, the other one will take over the load. It will not allow them to share the load.

None of the LED drivers in the MEAN WELL range have a ‘current sharing’ function.

Please do not hesitate to contact Power Supplies Australia if you have any questions about this topic.