I ordered a Fenix HL21 for $35 with shipping and it arrived today. It is 3oz with an alkaline battery, headband and the diffuser. I like it!
The switch works well– a rubber button on the right end (the battery cap is on the left end. It is easy to pinch the battery barrel end-to-end between forefinger and thumb and press the button with your thumb. One click turns it on in the last mode used; two fast clicks puts the light in SOS mode, and it is a true SOS, not just flashing. If you hold the switch longer it will change one level. The light color is very acceptable to me and seems to be fairly neutral. It is offered with either black or yellow housings. I went with the yellow for better visibility. A touch of glow-in-the-dark would be good; I may have to add a couple dots of glow-in-the-dark tape. The headband is adjustable 1" elastic. The headband cut-outs in the mounting plate would allow use on a 1" web strap or belt. The mount allows the light to swivel down 45 degrees and has detent/ratchet effect friction to hold it at the desired angle. The diffuser snaps on the head and swivels on a hinge. It is clear plastic with a molded grid to scatter the light. It is a little light on construction and IMHO needs some reasonable caution.
Why did I choose this light?
*Single AA battery. I like a single battery lamp and life is acceptable with this one. I have had a few 3-AAA battery headlamps and carrying spares means having three good batteries for backup. Most of my hiking is day and overnight camping, so I can afford to have a fresh battery every trip. Replacing a single battery in the dark is much easier. The end cap on this unit is a threaded cap and has an o-ring seal.
*Waterproof. This one is rated IPX-8, which is a 2 minute dunking. I'm more concerned with rain, so this is above and beyond— good for sea-kayaking and other small boats too.
*Positive switch. This one doesn't have a guard or lock-out, but it should be resistant to being accidentally turned on while packed. The battery cap can be loosened to prevent accidental activation.
*Lighting modes. Three modes work for me and anding the diffuser effectively gives 6 levels. The low level is just enough for tent light and reading. My initial impression is that I would be using it in medium mode around camp. Ratings are 97 lumens/2hrs3min, 47 lumens/5hrs43min, and 3 lumens/53hrs. It does have a regulation circuit.
*Price. I would call this a poor man's Zebralight. If were doing a lot of night hiking, I could see spending more, but this light gives good features at about half the price of a Zebralight and is durable enough for my uses.
