Re: headlamps

My prefernce by brand is Princeton Tec for their great engineering and quality.
By model it's any headlamp, like the QUAD, which has "regulated circuitry". That means instead of losing light intensity as the batteries weaken the light output stays almost level until the very end of the battery life.

Black Diamond lights ae reliable but I don't think they have any regulated headlamps.

PETZL is my "bottom of the list" brand for lack of quality and inability to use lithium batteriws without burning out bulbs OR burning up wires, as in the recalled MYO series.)

Eric