I know you wanted handheld, but this is what I use.
My experience in an actual lighting failure was a handheld didn't work well. The best I could do was try to secure the flashlight on the passenger seat with the seatbelt in a reasonable position, but still couldn't see all the instruments I needed.
This headlamp is very comfortable, I can and have worn it on a long nighttime XC. The red works very well and can be turned on and off with the push of a button.
Energizer Vision Ultra 450 Lumen Headlamp has the latest LED technology and patented optics, delivering exceptional vision an dup to 15x brighter than standard LED technology.
www.menards.com