1.Operating voltage: 9-24VDC(recommedded DC12V,this voltage to the heat sink requirements are very low)Maximum supply voltage of this board is actually up to 40V,but you need to change the board's own electrolytic capacitor C1,the capacitor voltage value is higher than the supply voltage can be use)
<br />3.Total harmonic distortion: 0.08% (Po = 0.1 to 14W, RL = 4 )
<br />4.Static current: about 25mA
<br />5.Speaker Impedance: 4 -8 
<br />6.Output Power: 18W
<br />7.SNR: 94dB-106dB
<br />8.Heat: the higher voltage supply ,the greater volume, the higher the heat.
<br />
<br />Note: This is a DIY kits,you should solder it by yourself!
<br />
<br />Package included:
<br />1x TDA2030A Audio Power Amplifier Board DIY Kits<p> <b><b><img src="https://contestimg.wish.com/api/webimage/591517b437cf594c1d6b82f7-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/591517b437cf594c1d6b82f7-1-large.jpg"><img src="https://contestimg.wish.com/api/webimage/591517b437cf594c1d6b82f7-2-large.jpg"><img src="https://contestimg.wish.com/api/webimage/591517b437cf594c1d6b82f7-3-large.jpg"><img src="https://contestimg.wish.com/api/webimage/591517b437cf594c1d6b82f7-4-large.jpg"><img src="https://contestimg.wish.com/api/webimage/591517b437cf594c1d6b82f7-5-large.jpg"><img src="https://contestimg.wish.com/api/webimage/591517b437cf594c1d6b82f7-6-large.jpg"><img src="https://contestimg.wish.com/api/webimage/591517b437cf594c1d6b82f7-7-large.jpg"><img src="https://contestimg.wish.com/api/webimage/591517b437cf594c1d6b82f7-8-large.jpg></b></b></p>