Hi John,
There are about 9 pcs LEDs in the BP-MBASRX299EI-OLED water block.
The length is about 150mm.
Here is the 200mm one, you can cut and use it on the CPU water block too.
https://shop.bitspower.com/index.php?route=product/product&product_id=6701&search=BP-RTFT200
If you have any questions, feel free to contact us.
