This Sloan Multi-Zone light controller offers independent control for up to 4 zones within a hot tub. Many hot tubs that have the small LED lights around the perimeter have this Sloan light controller in them to power the LED lights in up to 4 different regions. When replacing a Sloan light controller it is very important to match the replacement controller part number with the old controller part number to ensure proper function. Sloan makes different model controllers and they are not interchangeable. Details: OEM part # 701898-DLO Max point of lights 100+ Input voltage from spa pack: 12 VAC Additional lighting source: Optional 12 VDC input (5A Max) Number of individual colour “shows”: up to 7, programmable Lighting zones: Up to 4 Dimensions: 2.9" x 4.375" x 1.0" Independent control of up to 4 regions (zones) within spa. This SloanLED - provided default behaviour or OEM-defined experience for each zone. Controls and synchronizes all LEDs. Controls up to 100 LEDs. Controlled by spa pack, attached lighting can be powered by spa pack or optional external power supply. Customized colour, brightness, jump speed and wheel speed. Compatible with all LiquaLED Cluster Lights, Bullet Lights and Accent Lights. Please Note: All LED drivers and lights are shipped factory-new and factory-tested. Because these are sensitive electronic components, all sales are final and items cannot be returned. However, all LED drivers and lights are fully covered under the original manufacturer’s warranty