i had a discussion with a friend regarding his project and notice he used 2 different single channel relays, as the tittle said what is the differents between JQC3F and SRD relay and with is better?
Hi,
Welcome to the forum.
Please read http://forum.arduino.cc/index.php/topic,148850.0.html.
Please post some links to what you are asking about.
As they both come out of China, the difference would be hard to workout, as for performance and durability, what data is provided by the manufacturer.
If you need a good reliable relay, then get them from good reliable vendors, preferably US or UK based companies.
Thanks.. Tom.. 
Better in what respects ?
Compare the data sheet characteristics.
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