Don’t be fooled by the small size and light weight of this sturdy headlamp. Its bright white Maxbright LED can cast a 35-lumen beam precisely where you want it. And it also has a red Ultrabright LED for seeing in the dark without compromising your nightvision. Adjust the headband for optimal comfort. Run time is up to 146 hours on two AAA alkaline batteries (included) or lithium batteries (not included). Weight: 2.25 oz.
Batteries lasted about 15 minutes...Tried new batteries and same outcome. This was the 2nd p-tech that i bought. (diff. model previously)... same crummy performance.
The brightness and run time listed on the packaging for this is phenomenal. I purchased one of these for a Scouting campout and halfway through my son said that it was flickering. I took a look and sure enough, it was pulsing, not showing much light. It couldn't be turned on nor off unless you popped out the batteries. I popped the rubber switch cover off (too easily done, in my opinion) and a piece of plastic popped out, which I assumed was the switch. Couldn't do anything with it after that.
The brightness was as advertised. However, the durability was less than desired. Because of the run time vs price, I will purchase another one for the next campout to test. Hopefully, it won't have the same problem.