A:Answer The TCL QM8K uses extensive Mini-LED dimming zones, with counts varying by size, for superior contrast and brightness (up to 5,000 nits), featuring over 3,000 zones on the 98" model and 1,680 on the 65", powered by advanced tech like Halo Control to minimize blooming for excellent HDR performance, making it a strong contender in premium 4K TVs.