In summary, it has a very long battery life, is lightweight for its category at a price I have not found comparable with such features.
- In more detail, it is a headlamp that can be used everywhere, from sports activities such as hiking/running at night on a mountain or road to technical work without the fear of the battery running out while you exercise/work (29 hours 100 Lumens - 15 hours 300 Lumens - 10 hours 600 Lumens tested). Especially for camping, it can last 2 to 3 days at least depending on usage.
- During mountain hiking, the 300 and 600 Lumens were sufficient to illuminate even for those ahead with the 100 Lumens being more than enough to see the person wearing the headlamp.
- During technical work such as car repair and bike repair, I was satisfied and there was never a moment when I missed the light.
- Besides the basic functions with the 3 basic scales, the turbo with 1400 Lumens is useful instantly or for a few seconds mainly outdoors when you want to see at a long distance or very clearly where the light stays at 600 Lumens steadily for about 2 hours and then decreases automatically for protection from overheating. A feature I liked because most flashlights tend to periodically drop Lumens due to overheating and lose their usefulness (handheld flashlights etc. even from well-known brands that I have tried). Even when it gets very warm, within 5 minutes it has cooled down and is ready to operate at the high scale and can operate at the low scale as it cools down.
- The red light is useful for reading maps or notes in the dark without bothering the eye from the white light. The ultralow function of 8 Lumens is satisfactory for an emergency when you are about to run out of battery (requires effort) or as a signal for walking in an urban area where I use it.
- I have no reason to analyze the other functions it has as they are as described on the Nitecore website.
- One of the most important observations I made is that at the high scale of 600 Lumens, the flashlight can illuminate steadily at 600 Lumens without decreasing for about 2 hours, and then it decreases on its own for about 2 hours, and then it decreases on its own for protection from overheating. A characteristic I liked because it is common for most flashlights to have a periodic drop in Lumens due to overheating and thus the high Lumens decrease dramatically within a few minutes and the flashlight loses its usefulness (handheld flashlights, etc., even from well-known brands that I have tried). Even when it gets very warm, within 5 minutes it has cooled down and is ready to operate at the high scale and can operate at the low scale as it cools down.
- The fit on the head is very good with the headband being comfortable and elastic, on the inside where it fits on the forehead it has a strip of silicone for better grip. Weighing 116 grams, there is no weight discomfort, but during running vibrations are definitely noticeable without the fear of it coming off. In addition, the temperature of the flashlight is not transferred to the head as the base has a gap that allows it to cool better.
- The only feature that I can say might bother me is the safety sensor where when it is in medium, high, or turbo mode and detects an obstacle in front of the flashlight (5 to 10 cm), it decreases to the low scale of 100 Lumens for flashlight protection from overheating. This can be annoying when working in a tight space or when the head needs to be close to an object.
- I have had it for 2 weeks and it has fallen twice without any visual or functional damage.
-Finally, it is worth mentioning that it is very practical that it has 2 buttons for the functions and does not have many buttons to confuse the user with what each one does.
-For most people, the features it offers may be excessive and they do not want to spend so much money.
-I will try to update periodically about the good functioning of the lens but also any problems that may arise.
Update 1: After 1 month of daily use in work and activities, I remain satisfied without any problems.
Update 2: Almost 9 months later, it has been tested in rain (several times in mountain and asphalt running), even more falls and summer heat without any problems. As I expected and consider it reasonable, the lumen drop occurs faster due to overheating in heat, but it still does not transfer heat to the head.
(The photos and video were taken with an iPhone 13 without any editing, with the headlamp working at 600 Lumens.)
