HiLetgo 2000W PWM AC Motor Speed Control Module Dimmer Speed Regulator 50-220V Adjustable Voltage Regulator

Works as it should.

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Ne pas acheter reçu. Mais ne fonctionne pas et le fournisseur ne veut rien savoir il dit qu'ils sont testée et que c'est nous qui ne savons pas s'en servir ils nous prennent vraiment pour des tocards.aucun retour possible pour échanger et aucun remboursement super !!! Un produit défectueux de mauvaise qualité. A éviter

Did the trick on my ceiling fan that was not variable speed

I used for Bosch angle grinder and it worked very well. Go for it DIYers

El producto está bien permite regular el voltaje de aparatos de 220v. En mi caso se trata de un motor al que tenía que bajarle las revoluciones de 13000rpm a cerca de 5000 rpm/m. Lo he podido utilizar gracias a un regulador que lleva en el interior para bajar o subir el voltaje de entrada según lo que sea necesario. Es sencillo pero funciona. Instalarlo es fácil, dos cables de entrada y dos de salida hacia el aparato a regular.No trae instrucciones. Es frágil y hay que ir con cuidado al instalarlo. No se lo que durará pero de momento por el precio está bien. Ah, envían dos unidades. Es solo para 220-230v.

For everyone who is curious about how it works. I wired this up to a 60w incandescent light and observed the wave. This appears to he a triac controlled device, when the dial is turned down cuts the sine wave down, when it's turned up, it allows it to go up. At full speed the wave is still partially cut but only slightly, that's just because of efficiency. This works great on my CNC shop vac, and other universal motor speed controls. Works great on resistive loads like motors, light bulbs, and probably AC heaters too (depending on the type). (Does not work on led light bulbs as they function different internally). For those of you who want to use this to vary the voltage, this won't work. The rms voltage will change a little but since the sine wave is only shortened it will still hit the high voltage levels of ~169v peak unless the wave is shortened to just a tiny piece of it. When I initially tested this is was giving full voltage full duty Cycle the whole time, it wasn't until I put a resistive load on the device that it actually began working. I have several of these because for my uses they work fantastic.