I ordered 2 2 never walked. I contact the seller, who told me roughly, products are always checked before sending, it's weird ... etc limit that is my fault. And again, I must return them (at my expense of course, no proposed solution, I do have on the quality, and in addition, I pay the referral, will therefore) Just to clarify, the blue light goes on well, but smoking is virtually gives no steam (whereas with the original one that was perfect) FYI, my wife ordered two more: same, same result. This will serve as a lesson to us, the seller regourgue products that do not work, we have changed and this is much better.