I purchased this product which is very convenient to implement, but after two days, one of the 2 heated sleeves and no longer works. I recommend the same hardware, because it is really convenient, seeking the why and how, I realized that the bush has heated, is put on a lamp equipped with a dimmer. The other still works, it is in place on equipment with an ordinary switch. I'm just disappointed that nothing alert me to this fact. Now that I know (this call feedback) I actually enjoy everyone. Despite this small problem, I uses the same equipment and in the same shop, no particular problem screw screw Vendor Cordially