This device corresponds to the description and working properly. The adjustment knob is actually a 270 ° stroke. Easy to plug and unplug connectors with 4 screws to. I bought the 27-08-14 at a price of 4,39E TTC with free shipping and it arrived in my letterbox very quickly because shipped from England. We'll see over time because it is probably the "Made in China", with very low-end components and there is no "ten-year guarantee" on it ... However, I opened the box and I spent a full inspection, but I have found no mention of the origin or signature or components of the unit. It remains me a huge doubt, for the front of the case that I bought noted 12-24v DC, 8A. (The pictures currently displayed on the Amazon site, it says: 24V DC, 8A). But after removal, on the circuit board is indicated: 12V 96W. So I think it will avoid going beyond 12v for safety!
