A:AnswerYes but last time I was in which was right before Christmas, the sets are sold in a different quantity, mine was a set of 9 triangles and I bought 2 sets. I believe there are less now
A:AnswerIf you buy the starter kit a power cord is included with several different plugs to use in different countries.
They have to be powered to work so there's no way to have them light up without being connected to an outlet.
Perhaps those people just hid the cord really well.
A:Answerthst will be something thst will be never ending, u will always be moving them around especially once you get expansion packs of lately it's been cheaper to buy the box of 9, better options anyways having multiple controllers especially if you want the panels on multiple walls
A:AnswerYES I Believe they do, I had a set purchased from Best Buy and the rhythm controller went out on them, the lights would stay white, after one call, the manufacture promptly sent a replacement after asking for the serial number.
A:AnswerSorry, this isn't an answer....but I was questioning the same thing? The only thing I can think of is 9 + [3 pack (x3)] = 18 ($349) vs 15 = $299 vs 12 (199 + 59 = $260ish). That's my best guess.