Avoid this item like the plague. I had one installed today and it’s going straight back. The controls are pathetic. The LEDs are so dim and tiny, you can’t see what’s on and what isn’t. You need a magnifying glass to operate this thing. The lateral slider is tricky to operate and largely unresponsive. The dual function rings 1 & 3 are very awkward to manipulate with a single touch button to alternate between them. But frankly, it doesn’t work, or at best it’s hit or miss. I am truly staggered as to how this got so many positive reviews. It’s simply - rubbish.