Granboard Sync LED Lighting System – for use with Gran Eye. SYNC LED is a dedicated lighting accessory designed to elevate your GRAN EYE experience. It delivers soft, ambient lighting that enhances your playing space, adding a polished, professional feel to every match. When connected to the GRAN EYE app, the lighting syncs in real time with your darts and scoring, creating an immersive, stage-like atmosphere that draws you deeper into the game. SYNC LED is intended for use with a dartboard surround, and for the best lighting performance, we recommend pairing it with one. *GRAN EYE unit sold separately.