Since I do a lot of higher voltage work, I'm used to using a Fluke digital multimeter. I't good for just about everything that has to do with the ride too. As far as a 12 volt test probe goes, I've had best luck with Mac stuff. Working under-dash on my old Chevy, I don't know what I'd do without my Mac 'headlight' either.. It shines where ever I've got my head pointed and allows me to keep both hands on the job and actually see what I'm doing at the same time. I can live with the messed up hair.