ACR ELECTRONICS URC-104 Master Controller for RCL-100 LED & RCL-50 LED Searchlights The URC-104 Master Controller may remain hidden out of view, but it is the core component that brings the entire ACR searchlight system to life. Mounted discreetly behind the dash, this controller functions as the central hub that enables smooth communication and operation between the RCL-100 LED and RCL-50 LED searchlights and their control interfaces. As the system s command processor, it ensures complete functionality of both the URP-103 Point Pad and the URH-103 Handheld Wireless Remote, delivering responsive performance and reliable control from any connected station. Engineered for modern installations and refits, the URC-104 simplifies integration while maintaining a clean helm aesthetic. By placing intelligence where it matters most behind the scenes it allows the user-facing controls to remain intuitive, streamlined, and ready for use in any lighting or sea condition.