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Electronics => Beginners => Topic started by: oliv3r on January 05, 2025, 02:17:41 pm

Title: LED Driver replacement with dimmer
Post by: oliv3r on January 05, 2025, 02:17:41 pm
Hey all,

maybe an oddball question, but my bathroom LED driver started to stop working (leds blinking) so I assume the driver is busted. The LED driver is a 36V 700 mA constant current driver, and the LED spots are 3 units of 12V 700mA each. I have 2 drivers and thus 6 LED spots.

The LED driver states on its housing that its dimmable with leading and trailing edges.

So now I'm looking at replacing the driver, and pairing it with a shelly dimmer 0-10V PWM dimmer. I have found a few good suspects from meanwell, but I'm doubting whether I should stick with a double design (e.g. 2 drivers) which has as an advantage if one fails, the other keeps working (like right now) or picking up a beefier driver and running things at 74 Volts (12 * 6 in series). The drivers and wiring are behind a recessed ceiling, so fully touch-free, but the 74 Volts feels odd to me.

Regardless, if I run two drivers, could I control them with 1 dimmer? e.g. connect both DIM- and DIM+ of the drivers to a single shelly dimmer? Since the drivers just use it to measure the PWM frequency, I don't see how this would be a problem, but who knows.

Any thoughts are appreciated.