Hatana Hot Tubs LED for Main Light Lens Black & Blue Daisy Chain system. LED for Main Light Lens Black & Blue Daisy Chain system. Spa lighting transforms a simple soak into a luxurious experience, adding beauty, safety, and style. Options include underwater LEDs, perimeter lights, waterfall lights, step/pathway lighting, and floating lights. Choosing high-quality lighting means better durability, safety, energy efficiency, and an upgraded spa experience that lasts.