HDMI 2.1 CERTIFIED FOR THE HIGHEST QUALITY CONTENT - With an ultra-fast refresh rate, the TV lighting sync box can adapt to the highest quality video content with 8K at 60 Hz and 4K at 120 Hz. SYNC TO ANY HDMI DEVICE - You can only sync the colour lighting with HDMI devices, not with TV apps. Connect up to 4 devices, including the latest gaming consoles and home theater devices. PERSONALIZE YOUR SETTINGS - Adjust the intensity of your indoor lights to your liking with the Hue app. FULL SCREEN VIEW: Keep your eyes on the action with no cameras, wires, or other indoor lighting distractions dangling in front of your screen. REQUIRES A HUE BRIDGE - To use the Hue sync box 8K, you must connect it with a Hue Bridge. It unlocks the full potential of your smart LED lights system with automations, smart control, and much more.