Fair enough switch board but catastrophic packing! Just thrown into a box with other components and no insulation at all! Full of scratches and one resistor ripped off. The good thing: the seller sends a new switch
Perfect package, one of the best for small parts
Works also on 12v dc. Don't put 30v ac on the input. The 7812 shut be able to convert 40v dc>>12v dv but this one will shut down. Works good.