No, they do not have LED lighting. I recommend the brand new https://www.digitec.ch/de/s1/product/corsair-icue-h150i-elite-capellix-liquid-cpu-cooling-cpu-kuehler-13969521. This already has RGB fans and is only very slightly more expensive. If you bought three RGB fans in addition to the H150i RGB Pro XT, only the fans would cost you another CHF 100. The surcharge of just over CHF 20 to the new H150i Elite Capellix is negligible.

No, they don't light up. You'd have to buy extra ones that light up.