Power your 2.1mm barrel-powered device via AC power with this PSA12421 AC Power Kit from Bescor. The kit consists of a 12 VAC, 5A power adapter with a 4-pin female plug, an XLR male to 2.1mm barrel power cable, and a power cord to plug in the AC adapter.
Bescor PSA-124 12V Power Supply for 4-Pin XLR Equipment
The Bescor PSA-124 is a lightweight 12V power supply. Designed to output regulated power from 110 or 220 VAC mains. It includes a standard US AC cord. The 3' cord terminates with a 4-pin female XLR connector for a direct equipment connection.
Bescor 4-Pin XLR Male to 2.1mm DC Barrel Power Cable (10')
Power your lights with this 4-Pin XLR Male to 2.1mm DC Barrel Power Cable from Bescor. This 10' long cable features a 4-pin male XLR connector on one end and a 2.1mm DC barrel connector on the other end to supply power to your gear with a compatible battery or power adapter.