Audio Speaker Protection Board Amplifier Components DC Protect Kit DIY

Specification: Input voltage: AC12-15 V Size(L*W*H): 6x 4 x 2.5 cm (Finished) Feature: With power on delay (about 3 seconds) and DC protection (control voltage around 1 V) With LED status display, when the protection light, the normal work time off Using 15 A large current relay Working voltage aAC 12 to 15 V, need independent power supply. Package includes: 1 x Double-sided circuit boards 1 x 4148 4 x Capacitor 6 x Transistor 5 x Metal film resistors 1 x Bridge Rectifier / three-terminal regulator /each 1 x LED (light emitting diode) 5 x erminal Block 2 x 15A Relay 1 x Kit assembly instructions