Lishui FOC vs Kunteng Sine Wave

[rullskidan]

What is your opinion on this? Is it worth the extra cost for a FOC controller? Is there a big difference in how they handle geared vs direct drive hub motors?

I am planning to buy this motor: 800W Powerful Cassette AKM Motor 128HCST Cassette 48V.

It is very difficult to find someone that sells Lishui controller rated for 800-1000W, the closest to the spec that I could find is:

Lishui Controller 500 Watt, 36V/48V, sine wave, sensorless, high speed *TOP*

€119.90 sold by groetech

Is there a noticeable difference in noise level and efficiency?

 

[stancecoke]

BURCHDA E-Bike-Motorsteuerung

Unterschiedliche Controller sind für unterschiedliche E-Bikes geeignet und können nicht untereinander ausgetauscht werden. Bitte vergewissern Sie sich daher vor dem Kauf, welches E-Bike-Modell der richtige Controller ist! Mühelose Leistungssteuerung – Präzise Kontrolle direkt in Ihren...

www.burchdabikes.com

1300W peak...

But I don't know this seller at all.