Switch ratings
Switches have two different ratings - AC and DC. A switch may be rated for 25 amps AC, but only 5 amps DC. The ratings are based on the switch's ability to extinguish an electrical arc when the switch is opened(turned off).
Since AC voltage passes through zero volts 120 times pet second, AC ratings are generally pretty high. Zero volts = 0 amps = no arc to extinguish!
On the other hand, DC voltage never goes to zero, so an arc could leap across the switch contacts (inside the body of the switch), ionizing the air and creating a path for continued current flow.
DC rated switches have internal arc-quenching designs to prevent continuing arcs. If the specs for the switches that you're looking at don't include a DC spec, look somewhere else!