The Kessil A360 light is one of my personal favorites, and my weapon of choice for growing SPS and LPS corals. One issue that many aquarists have noted, is that the Kessil lights didn’t include any controller. Yes, they could be hooked up to the Neptune Aquatics Apex, and with a bit of minor programming a ramp schedule could be formed. It was great for advanced aquarists, savvy with reef keeping tech, but not ideal for aquarists who wanted a simple way to control their LED lights. That has finally changed, as Kessil has released a controller, capable of controlling either 2 lights independently, or multiple sets of lights, using additional communication cables. 
Kessil’s controller looks great, nearly as sleek as an iphone, with a bright LCD color screen. One innovative design is a magnetic bracket, which can be mounted to the wall allowing the magnetic back of the controller to snap into place. This mount makes snapping the controller on, and off the wall easy, and looks good resting next to a reef aquarium. Looking at the controller, your notice more than one note taken from Apple’s design playbook. The menu navigation buttons are very ipod’esque, a throwback to the original ipod, famous for its round sliding button, with center selection button. This is essentially the way that the Kessil controller operates, allowing you to slide through different menu options, while pressing the center button to confirm a setting or make a selection. In addition, there is a back button that takes you back through previous menus. All in all, the unit looks and feels great in your hand, but clearly it was built, with simplicity in mind. 
Set-up is straightforward and easy. A communication cord (the same as an aux audio cable) connects from the controller, into the input jack on the light. This gives you control of one light. If you want to group more than one A360 together, you will need an additional communication cord, which will run from the light’s output jack, into the other lights input jack. This light/communication chain can run, for however many lights you want controlled via one port. There is a second port, allowing some flexibility. Using this, several lights could come on at a different time, and maintain a different spectrum than the other set. Kessil points out, that if you use an A360 over a refugium, the refugium light could be booting up, while the aquarium light ramps down.… More:
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