Key benefits This amplifier board includes a music rhythm light with four level brightness adjustment and two rhythm modes, providing visual feedback during playback and enhancing user experience. It features protective mechanisms against overvoltage, short circuit, overheating, and overcurrent to improve reliability and safety. Flexible connectivity and wiring options: uses 5.5/2.1 sockets and is compatible with 5.5/2.1 and 5.5/2.5 plugs; comes with DC adapters to accommodate non standard plug wiring. Power and output capability: accepts DC input from 9 to 24 V, delivers stereo dual channel output, and supports 100 W + 100 W power for capable amplification. Technical highlights Input: DC 9–24 V Output: stereo dual channel Power: 100 W + 100 W Connectors: 5.5/2.1 sockets; compatible with 5.5/2.1 and 5.5/2.5 plugs Protection: overvoltage, short circuit, overheating, overcurrent Features: music rhythm light with four level brightness and two rhythm modes Accessories: DC adapters included to ease non standard plug wiring Applications and use scenarios DIY audio projects and experiments: integrate into a two speaker setup with a DC supply to explore stereo amplification and synchronized rhythm lighting. Vehicle and mobile audio installations: powered from a 12 V to 24 V electrical system, suitable for car, RV, or boat audio projects requiring dual channel amplification. Small home or studio setups: run a compact stereo system or hobby PA with dual 100 W channels for clear, balanced sound in a room or workspace.