Question about heated bed wattage - specifically Printrbot 8"x8" bed.

Question about heated bed wattage - specifically @Printrbot 8"x8" bed. The product page on their site seems non-intuitive - the 6x6 is listed at 240W, while the 8x8 is only 130W. That seems both backwards.

https://printrbot.com/shop/printrbot-heat-plate/

Next question: Can the power transistor on the Rev D board handle the 10-20(+?) Amps needed to run the 8x8 board?

I have the 8x8 bed and I’m working out how to mount it on my (modified) Simple Maker edition printer.

(@Brook_Drumm ?)

The site claims 12V for each.