I recently converted the fuge section in my sump after having my algae turf scrubber running for a couple of months now.
I use the refugium chamber now to grow frags. I am currently running a Rapid Led par 38 bulb. The refugium chamber is about a 20 gallon section. So far I am not too impressed with the results from the Rapid Led par 38 bulb. I also removed the optics because they were too focused and we're not providing the spread I needed.
I have been looking into the Coral Compulsion par 38 G2 bulb which seems to have a better mix of colors and may provide more of the spectrum I am looking for my frags to color and grow.
The other choice I would have gone with would have been a Reef Breeders par 38 but I believe they have discontinued it in place of their nano/Pico WiFi led unit which uses similar leds as their larger units.
As mentioned the Rapid Led bulb will provide plenty of light but for me I am not satisfied with it.