Hi Al,
May I have the model or picture of your acrylic pump top?
If the RGB comes with the pump top is 3 pin, it is 5V, digital RGB LED.
It could not connect to the RGB 4 pin controller.
This link shows the difference between RGB and digital RGB.
https://bitspower.com/support/11/what-is-drgb?show=12#a12
We have the controller for digital RGB LED too.
https://shop.bitspower.com/index.php?route=product/product&path=471_477_478&product_id=7822
If you have any questions, feel free to contact us.
