LED headlamp L-Smarter XY501 with built-in 18650 lithium battery

For any flashlight, the priority is good optics, the type and capacity of batteries, as well as ease of use. Then, even in pitch darkness, you can quickly find a black cat. Let's start with optics. It can focus or diffuse light rays, creating a narrow or wide spot of illumination. The wider the spot, the less “range” of the flashlight. Universal models with light adjustment switch from a focused beam to a wide beam and vice versa. Its brightness is measured in lumens. How to choose a flashlight In some flashlights, the brightness is adjusted by stepwise switching, in others - smoothly. The second option is more convenient because the luminous flux gradually changes the light intensity. You can decide on the optimal mode. The operating time of the device depends on the type and capacity of the battery. An AA or AAA battery is cheap, but expensive: it discharges quickly. A lithium battery lasts twice as long as a regular battery, but costs more. The Ni-Mh battery can withstand up to five hundred charge cycles, but is useless if there is no outlet nearby when it runs out. The Li-ION battery is “conditioned” with maximum current output. One Li-Ion 18650 battery is enough to wander through the forest for ten hours straight, illuminating your way. The built-in battery is charged from a car cigarette lighter or any gadget with a USB connector. With a built-in dynamo battery, you can recharge anywhere with physical effort.r.

LED headlamp L-Smarter XY501 with built-in 18650 lithium battery:
Operating time: 2-6 hours;
Charging time: 2-4 hours;
4 options for headlamp operation: 1 indicator is on, 4 indicators are on, 5 indicators are on, 5 indicators are flashing;
Material: ABS + Plastic;
Battery: built-in lithium 1x18650;
Headlamp size: 90x50 mm;
Weight: 99 g.

Includes: headlamp, elastic strap with adjustable length for attaching the flashlight to your head, box, Micro USB cable.