1. The amplifier comes with a heat sink for easy heat dissipation2. The input voltage is DC 12~24V, and the voltage range is wide3. Digital amplifier board, with high-fidelity, two-channel stereo sound quality4. 100W output, sufficient 5. Terminal output, easy to useProduct name: Digital amplifier boardModel: XH-A283Chip: TPA3116D2 supply: DC12-24VOutput impedance: 4Output : 2*100W (at 24V)Overvoltage protection: yesShort circuit protection: yesOverheating protection: yesOverload protection: yesDimensions: 80 x 60mmInstallation hole distance: 27 x 52mmcolor:BlueMaterial:PCB+MetalPackage Contents:1 x XH-A283 Digital Amplifier BoardOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.