"The fact that the adjustments are not on the front is a bonus, as it stops being messed with once set, which is good for public places. It is IP44 rated, where as others are not or rated lower, making it more suitable for places that others are not. As an electrician I have fitted several and experienced no problem. Finally it is cheaper than most, so all round good value."
"I use a lot of these to switch lights in kitchens, good product only annoying factor is that the adjustment dials are in the ceiling whereas other brands have them visable and accessible after fitting"