No, amigo, they're actually filled up with nitroglycerin. This is to limit an access to the switches to an authorized personnel only. As for a toggling On/Off switches, I need to advise you, amigo, that some of them are controlling electrical chairs, please look closely at the image to identify those. We don't wanna turn the power off in the middle of the execution and have some poor sucker roasted only to the medium-rare state, do we ?!