This model is an alternative version to the official option. It really is poorly designed as you have to remove the Chemconnect to be able to place it in the LED light which is annoying if you want them to live simultaneously. Now I have seen on eBay where sellers are selling an option where a 3D printed adapter is placed on the bottom filter screw hole and a LED light is placed inside it. But this also impedes the fact that you would still need to remove it to get to the filter inside to clean it. This model keeps everything intact without the need to remove any parts of the hot tub. Works with generic underwater LED lights like from Aliexpress with remote controls.