1. The PCB adopts 1.6MM thick double-sided glass fiber board, 2.0 oz copper thickness, and tin spraying process to ensure good passage of large currents 2. High-quality power modules replace traditional formers, with low energy consumption, high efficiency, ultra-stable, low heat generation 3. 105-235V wide voltage, applicable at home and abroad 4. HF-105F-1 high current 30A power relay, stable and reliable performance, maximum power can support 2000W 5. The power switch uses a touch switch, which is convenient and flexible. Working voltage: 220V Maximum load: 2000W Control switch: touch switch Relay rated power: 30A*2 PCB board size: 9.8CMx8CMx2.2CM PCB hole pitch size: 7CMx8.6CM Product Features: 1. Delayed start, the first relay is closed at the moment of power-on, and then the current is limited by the NTC thermistor. After a delay, the main relay is turned on to achieve the soft start function. Suppress the instantaneous surge current when the power amplifier is turned on. 2. Road overheating protection, use the attached 75 degree temperature control switch to install on the radiator, When the temperature of the radiator of the power amplifier board exceeds 75 degrees, the board can immediately cut off the power supply to prevent the power amplifier from overheating and burning. The power amplifier can not be restarted until the temperature of the radiator drops below 75 degrees, otherwise the power amplifier cannot be turned on. Note: This finished board does not support self-locking switch Specifications:A:16-piece set/B:24-piece set Colour:Black Material:ABS<br><br>Package Contents: 1 set * AC105-235V Amplifier Switch Only 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.