Watkins Luminescence LED Hot Tub Light

Hi. My Hotspring Control board failed, not paying £400 for a replacement, so I created a control system with an ESP32 in ESPHOME. All works well but I need to get the multicolour LED tab lighting working. As far as I can work out it is i2C controlled, but cannot fine any circuit or data on it. It has a Black and RED, guess these are the supply, voltage unknown. There are three other wires, data I guess, Green, Brown and White. The Control board and light unit are made by Watkins. The LED board has the following numbers. 4907, 94V0, E170968 and BB22466D. This is what it looks like. Watkins Luminescence LED Light Kit Main HSS
Any help on this would be greatly received. TIA

I2C doesn’t ask 3 data wires, but doesn’t exclude it neither. SPI?
You need to do little bit more research…