The AL624-12C is a linear power supply/charger kit used to provide auxiliary power access control, security, and CCTV systems. Featuring PTC battery protection, AC input and DC output LED indicators, and short circuit/thermal overload protection, this power supply/charger is specifically designed for long, durable performance.The kit includes (1) AL624 single output linear power supply board, (1) BT124 rechargeable battery, and (1) Plug-In Transformer. Also known as -Altronix Corp. 12VDC 1.2AMP-BATTERY/ TRANS.KIT - AX-AL62412C-Altronix AL62412C Power Module