No analog dimmers for me, I have a spare Mean Well ELN60-48P and a ''Steve's triple'' but I suspect that I'll end up picking up a few more Mean Well LDDs for the nano.
Keep in mind that the Reef Angel uses an amplified (10v) PWM signal. I ordered my dimming module for my 90 gal without the amplifier so it would be compatible with the LDDs. If you are not familiar with the LDD series, I suggest taking a look. The dim down to 1% and shut off at zero, they can control anything from a single emitter to a 52v string and they come in a number of different versions from 300 mA to 1000 mA.