ULANZI VL49 Camera Light, Led Video Light Dimmable with 2000 mAh Battery, Portab

【COLD SHOE MOUNTS 】LED Video Light is Designed with Expandable Connection System via 3 expension joint interface (1 interface on the top, 2 interfaces on the side) to connect multiple light panel together to strengthen lighting brightness and to get better lighting effects.

eBay