With simple AAA power, low-profile powerful and dimmable LED and best in class warranty, the HL-27 is the best headlamp available. I've tried several as a movie cinema technician working in dark projection booths and the HL-27 is my "go-to tool" in my toolbox, ruggedly built and a front dimmer wheel that makes it quick and easy to control the desired light output. Truly awesome product!
great head lamp that I use mostly for night fishing. Bright light that I can use with my hands free to tie lines and anything else I'm doing. Best thing is its just on and off without scrolling through the mifferent modes other lamps have. Just a perfect light for my needs.
The HL27 has two noteworthy features that make it a standout in headlamps. The rotary rheostat allows the light brightness to be adjusted from low (almost no light) to high, allowing you to adjust the light setting to your needs, not a preset brightness. Furthermore, the light focussing mechanism allows adjustment from a flood light to a focused spot. The the flexibility in light adjustment with the rheostat and the focus adjustment make this light a true standout from others especially true with the lifetime warranty. The downside to the HL27 is the lack of a red light and the absence of an on/off lock. However, the battery pack can be unplugged easy enough.