I am getting one of the sb Reef lights. Maybe Mike can chime in, I would tag him, but I don't know how lol. So you are saying I can't ramp lights with just the RKL and that I would have to order this alc module for it to work? The basic lights do not have a moonlight channel, but that's ok because I have a spare actinic led bar I could use for moonlighting if needed. I'm really leaning towards the elite, but I also really want a controller lol. My other half was giving me the raised eyebrow at the price of the light, so I don't think I could bat my eyes enough to convince him I need the elite and the controller haha:D