Add-on Kit for Kessil 360 \nThe Reef Brite XHO-X360 Add-on Kit will increase an aquarium's light intensity, PAR, and color. This kit is great for improving coverage and eliminating dead spots in your tank. The add-on kit can be controlled using the new Reef Brite Wireless Bluetooth LE controller (sold separately), which works with Apple® and Android™ devices.  \n \nProduct Highlights: \n\nXHO’s are dimmable\nCan be controlled with APEX® controllers (Reef Brite APEX LED interface required sold separately)\nEach kit includes two Reef Brite 11.125-inch Blue Actinic XHO’s, one X Series bracket, X Series endplates, a 2-way connector, in-line dimmer, and a power supply