OH I totally understand ecrack. I mean, this is a cheap imported dinky device. it costed 13 bucks, so you get what you pay for!
It really doesn't make sense, you're right BC P=IV, so 200W=12v*16.6A
Im no expert on how amps work but it seems like 2 amps at 12 v is about 24W power....i'll do...