ITEM NAME:Clear Sound Dual-channel Amplifiers 100W Stereo Power Amp Board Modules With Description: This is a toroidal transformer, 18-24V. Using excellent raw materials, the power consumption is lower. Small size design, clear sound output, the maximum output power is 100w + 100W, can drive 4-8 ohm speakers. Using external heat sink chip to make work more stable. With knob button , easy to install,convenient disassembly, first choice of DIY! Specification: Material: Plastic Size: 160 x 105 x 58 mm / 6.29 x 4.13 x 2.28 inch Package Includes: 1 Piece Amplifier Board Note: This is a toroidal transformer, please make sure you need this product before your purchase. Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. SKU: ALU0018795468004579.Small size design, clear sound output, the maximum output power is 100w + 100W, can drive 4-8 ohm speakers. Using external heat sink chip to make work more stable. 1 Piece Amplifier Board. Color may be slightly different since different monitor.