Compact 12V automatic control module that combines lightsensing relay detection and temperaturecontrolled relay functions for simple, reliable automation of DC systems. Why you need it Replaces manual switching for lighting and temperaturesensitive loads so devices turn on and off automatically when conditions change. Prevents unnecessary energy use and reduces the risk of equipment running outside desired conditions by using realtime light and temperature detection. A single module integrates brightnessbased relay control and temperature control logic, saving space and simplifying wiring compared with separate components. Key benefits Automatic brightness control: monitors ambient light and actuates the relay when brightness crosses the set threshold, ideal for dusk/dawn switching of lights. Lightcontrolled relay detection: reliable detection of ambient light conditions that triggers relay output for lighting, alarms, or other loads. Temperature controller function: provides relay activation based on sensed temperature, enabling heating or cooling equipment control alongside lightbased automation. Designed for 12V DC systems: compatible with common 12V battery, vehicle, solar and DC power setups for straightforward integration. Main features and attributes Functionality: combined lightsensing relay and temperaturecontrolled relay in a single module for multicondition automation. Compatibility: operates on 12V DC supply, suitable for 12V systems and devices requiring relay switching. Performance: automatic, conditiondriven switching for handsoff control of lighting and temperaturedependent equipment. Form and installation: compact module format designed to fit easily into control panels, vehicles, or small enclosures for spaceefficient installation. Reliability: uses detection sensors to monitor conditions continuously and actuate the relay as required. Typical applications Automatic outdoor or pathway lighting: switch 12V lights on at dusk and off at dawn without manual timers. Greenhouse or small workshop climate control: combine temperaturetriggered relay action with light control to manage heaters, fans, or ventilation in response to ambient conditions. Vehicle or offgrid systems: automate lighting and temperaturedependent loads in caravans, boats, or solarbattery setups running on 12V. Operation and integration notes Intended for use with 12V DC power sources; connect the module inline with the load and 12V supply following safe wiring practices. Use the module to switch relaydriven loads; ensure the load and relay ratings are compatible when integrating into your system. Ideal when space, simplicity, and combined light/temperature control are required in a single device. This 12V brightness automatic control module provides a compact, integrated solution for lightbased and temperaturebased relay automation, helping you simplify wiring, reduce manual operation, and maintain better control of 12V systems.