Just got my Maximum Vapors FunBox in the mail yesterday. 3.15-6.5 volt. I took advantage of their 40% off sale a couple of weeks ago & ordered this & a 5V wood box. He forgot to put the LED in it though, which he forgot to do on a plastic 5V box mod I bought from him a couple of months ago as well. Aside from that, I do like their products.

