The led uv flashlight cannot be adjusted because it uses a fixed focal length design, and the distance between the light source and the reflector is fixed and cannot be adjusted. Waterproof outdoor flashlights usually use high-brightness LEDs as light sources, and use special reflectors to concentrate the light to provide a strong spotlight effect.

Since it is designed to provide long-distance illumination and strong light exposure, there is no need to adjust the focus or beam size.

If you need to adjust the brightness of the light or the size of the beam, you can choose other types of flashlights, such as adjustable focus flashlights or multi-mode flashlights.

Strong light flashlight_led strong light explosion-proof flashlight

1. Why is the glare flashlight not adjusted?
2. Rotate the head to adjust the light, which is common in the middle head and big head flashlight of the strong light flashlight in the brand.

Advantages: simple and reliable structure, less possibility of misoperation, clear and clear gear position

Disadvantages: Some friends think that this method cannot be operated with one hand, and it is a “brain-dead” design. Some people think that the overall strength and contact will be affected when the head is unscrewed. But in fact, there are still many tubes that need to be tightened again after the head is unscrewed to adjust the light. For example, the OLIGHT M3X in my hand, Lumintop td12, td15, td15x, etc. are all like this. I feel that this does not affect the overall Intensity. Even if it is my TK12, if you need to unscrew the head to enter the next brightness, it only needs to be slightly loosened. The rectangular thread on the head is very tightly occluded, and with the function of the O ring, it can be thrown into the light when it is unscrewed. After half an hour in the water, there is no water in the barrel.

Tail button dimming: It is common in various DIY flashlights and a small number of brand flashlights.

Advantages: simple operation and low cost.

Disadvantages: The strength of the tail switch is the biggest problem, especially under the current development trend of high current and high power, the instantaneous current of the switch is getting larger and larger, the life of the tail switch is gradually shortening, and the damage rate will gradually increase. In addition, sometimes there is a possibility of misoperation. For example, I used to have a 2-group, 14-speed tube. It is annoying to adjust the light by pressing the tail cap. You have to switch the brightness one by one to get the brightness you want.

3. Magnetic ring dimming: JET, NC, SUNWAYLED, new naithawk, etc.

Advantages: easy to operate, can adjust the light on both sides.

Disadvantages: One-handed operation is still inconvenient, such as RRT2, I tried it, one-handed operation is very awkward. The magnetic ring of JET is loose. I don’t know if it will fail after a long time. Fortunately, no one has reported that the magnetic ring has failed so far.

4. Button dimming: ITP A6, SA1, etc., FENIX TK15,

Advantages: Easy to operate, such as TK15, press one to adjust the first gear, four gears cycle, long press the button to enter the hidden strobe mode, and press it again to exit. It is also very convenient to adjust the light when wearing gloves in winter. One-handed operation is always supported.

Disadvantages: It is not clear how long the service life of the buttons can be. If the buttons are broken, it will be troublesome. But fortunately, my ITP SA1 is EDC every day, the barrel body is exposed countless times, and the buttons are pressed and played every day without any problems. There is no problem yet.

led glare flashlight_led ultraviolet flashlight

2. What materials are needed for the strong light flashlight?

The following accessories are required to make a strong flashlight:

1. LED lamp beads: This is the core component of the flashlight. It is necessary to choose high-brightness and durable LED lamp beads.
2. Batteries: The flashlight needs batteries to provide power, and various types of batteries can be used, such as AA, AAA and other alkaline batteries, 18650 lithium-ion batteries, etc.
3. Circuit board: The circuit board is the core component of the flashlight circuit control, it is necessary to select a suitable circuit board to control the output and brightness of the flashlight.
4. Heat sink: When used for a long time, the flashlight will heat up, and a heat sink is needed to dissipate heat. 5. Reflector cup: The reflector cup is the concentrator of the flashlight, which can concentrate the light and improve the lighting effect. 6. Shell: The shell is the protective part of the flashlight, and it is necessary to choose a strong and wear-resistant material. 7. Switch: The switch is the control part of the flashlight. It is necessary to choose a switch that is sensitive and easy to operate. Different types of accessories need to be selected according to different needs to make a strong flashlight.