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Impression:excellent;

somewhere else it cost more money. This product is good. No problems with it. Want to use it for my vivarium. Excellent choice for it. I'm a starter. on the internet there is enough information abouth dit product. it came within the period they said.

Impression:excellent;

produit conforme et de bonne facture

Impression:excellent;

Easy to use. Can be use high volatge. Very usefull modul. Quality is very well. Three LEDs is good to check if it is function.

Impression:2 channel;

For my automated fireplace temperature control with an arduino nano and ventilators I use these relays to shut off the ventilators if the pulse modulation is zero to hard switch them off. Pros: two channel, nice click Cons: four channels are almost cheaper per channel.

Impression:Fácil instalacion;

Con esta PCB de relés se pueden hacer realidad los proyectos de potencia con arduino. Sólo necesita 5V Gnd y el input de 5V para activar el relé 1 o relé 2.

Very easy to use. A good option for people who want to start with domotic services. A good option for people who are using a Raspberry Pi like me. Have to be carefull you dont make contact with the backside pins. Nothing else to mention. Its a good product. Very nice for the price. Everyone who a... Very easy to use. A good option for people who want to start with domotic services. A good option for people who are using a Raspberry Pi like me. Have to be carefull you dont make contact with the backside pins. Nothing else to mention. Its a good product. Very nice for the price. Everyone who likes working with low cost electronic should give it a try. Very nice presentation. Leds make us know if everything is working ok. Happy for the bought. Resumen para los hispanos: Producto de buena calidad a un bajo precio. Los tiempos de envío son francamente buenos. El sistemas es una buena opción para usuarios de Raspberry Pi o Arduino. Incluye 3 leds para indicarnos el estado de funcionamiento. Estoy bastante contento por la compra. Read more

For people who like prototyping stuff it is a really nice module. Very easy to use and very well built. For the price it is a really nice thing to purchase. I didn't see on the photos that it was written in chinese in the relay, but this problem was solved using a multimeter. Very well built, for... For people who like prototyping stuff it is a really nice module. Very easy to use and very well built. For the price it is a really nice thing to purchase. I didn't see on the photos that it was written in chinese in the relay, but this problem was solved using a multimeter. Very well built, very cheap, nice quality, nice for home projects for hobbyist and student. Written in chinese, but this is not a big problem. A must have for those who make projects at home. If you need and would use, purchase it. Read more