Bought 7W laser diode, strong enough to cut lots of stuff right?

ummm... 7W? yeah, should be enough for cutting vinyl and similar... you sure its not 7mW? that would be slightly higher than the pointer brightness restrictions for the US... not really good for burning... a 80mW to 200mW is pretty good for tricks like lighting matches and popping balloons ... the epilog zing (prize for laser contest) is 25W