VOLUTTONIC 12V-36V DC Voltage Protection Module, Digital Low Voltage Protector Disconnect Switch Cut Off, Over Discharge Protection Module for XH-M609 Lead Acid Lithium Battery Solar Panel, Pack of 2

["1. 【Precision Voltage Protection】 Automatically disconnects the battery when voltage drops to a preset level, preventing over-discharge damage. Features ±0.1V accuracy with an intuitive digital display for real-time voltage monitoring. Compatible with lead-acid, lithium-ion, and solar panel batteries (DC 12V-36V input range).","2. 【Fully Programmable Settings】 Easily configure protection voltage, reconnect voltage, and delay time via onboard buttons. All settings are retained after power loss. Factory reset supported (press both buttons while powering on). Default protection at 12V with 2V recovery differential — ready to use out of the box.","3. 【Built-in Safety Protections】 Includes short circuit protection and over-temperature safeguards to prevent damage to your battery system. Reinforced PCB and thickened circuit traces ensure reliable operation in demanding environments.","4. 【Flexible Delay & LED Indicator】 Supports adjustable delay turn-on (0-999 seconds) after disconnection, ideal for compressor or motor loads. LED output indicator provides clear status at a glance — no more guessing whether the circuit is active.","5. 【Compact Design, Easy Installation】 Board size only 57 x 42 x 19mm (2.24 x 1.65 x 0.75 inches) per module. Comes with 2 units for multi-battery or backup systems. Perfect for DIY Bluetooth speakers, solar charge controllers, RV battery management, and automotive accessories."]