The lights on this tree were a disappointment. I specifically bought this tree for the "twinkle" and option of white or colored lights.  They do not twinkle at all, but rather flash/fade.  You can not control the speed.  Options are:  solid, 1/4 fade (same 1/4 of lights fade on and off while the rest of the tree stays solid), whole tree fade fast, whole tree fade slow (fades between white, solid, pastel), whole tree fade in white or color, whole tree flash between colors and white.  There is nothing relaxing or soothing about the lights on this tree.  I am all about a nice all over twinkle and this tree does NOT do that.  I will say the needles are nice and the tree takes on a nice shape after hours of fluffing. But if you are about sipping some hot cocoa in a dark room, enjoying the calm, and getting lost in the slow twinkle of your tree, do not buy this product.  If it wasn't such a hassle to return it, I would.