40 Amp High AMP AFS Fuses

hello so I get often asked about how to test out these big square fuses and you know if there's lots of videos on how to test those out usually what you do is you just get yourself a test light a good grounding point in this case your badge right there and your chassis and stuff grounds to it so you get clip on there show you that real quick and then you just go to a fuse that you think is gonna be active like these ones right here are my headlight ones so they shouldn't have anything going because the headlights not closed and there's no light coming on but this one here that's my dome light so apparently it's hot even though the ignitions off so that's why if you leave your dome light on I guess you can drain your battery but anyway so that's how you test these out that's really easy just if this one was burned out it's light up on one side but when I touch the other side it would not