It takes just a moment to join our fantastic communityRegister
USB only provides 500mA, so depending on current draw and the smarts of your torch, it may blow a fuse (if there is one) or blow a USB driver chip within MyLink (if there is no fuse).
As such, it’s always much safer to use the cigaret lighter socket or power socket with some 12v charger to juice your devices. I believe these sockets are fused (but not 100% sure where the fuse is located).
You could get a cigarette charger with USB port.just a small led torch , i didn't think it would draw much, it only come with mains and usb charge cable no cigarette plug ,might be saferto get a torch with a cig plug, thanks guys, bill