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Bought a Mean Well USA part number 1866-3226-ND in August of 2024 to replace a failed driver in a LED fixture. It sat for 1 year in the box, unused, in my living room. Installed it in a Modern Forms LED fixture (Model FM-4516-35-BN) on 10/30/25. This fixture has both a cool and warm string of LEDs. First, the cool string burnt out within 3 weeks. Switched to the warmer color temperature string, and that just burnt out in January, 2026.
So either these LEDs are driver eaters, or drivers today are all junk! Hard to tell which. When the driver was good, it was within the proper volt range, so it’s not a compatibility issue. What a waste of $37!
After looking into these part numbers, the FM-4516-35-BN needs about 27 watts to work at its best so these Meanwell drivers would be good for 2 lights each driver to meet the charistics of both. How many are you running off the 1 driver ?
The original driver has a current output of 480mA. The new driver has a current output of 1.25A. This would be why your LEDs are burning out. LED drivers are typically constant current, this means that they will adjust the voltage to always put out the designed current.
LED drivers differ in that way from traditional power supplies.
With the new information available, one the options in the link below should work as a replacement for the original. The current draw is less, so they might be slightly dimmer.
The LED strings, both of them, have been fried, so that unit is going to get tossed. In the meantime I ended up getting another one my buddy had laying around in his shop. With this new info I’ll remove the driver from the fried unit and store it for the future.
