Divers are no strangers to the diving flashlight! But when we use diving flashlight, which directly affect our experience effect, which are the important technical parameters?

I. Brightness of flashlight: The brightness of diving flashlight is an important indicator to measure its performance, usually expressed in lumens (lm). Higher brightness means brighter light output, but it also means higher power consumption and shorter battery life. Choose the right lumen brightness.

2. Beam distance: Beam distance refers to the farthest distance that diving flashlight can illuminate, usually expressed in meters (m). A longer beam distance means a longer range of light, but it also reduces the Angle at which the beam is scattered. The 2023 new D720 can shoot up to 1300 meters, suitable for a variety of underwater scenarios.

3, waterproof grade: diving flashlight should have a certain waterproof performance, so as to avoid failure in deep water. The waterproof rating is usually expressed in the IP (Ingress Protection) standard, where the first number indicates the dust rating and the second number indicates the waterproof rating. For example, IP68 means that it is completely dust-proof and can be used underwater for a long time.

4, battery life: the battery life of diving flashlight depends on the battery type and brightness level. Generally, higher brightness levels and time of use will result in faster battery drain. Therefore, choose a diving flashlight with a large battery capacity and rechargeable function to improve battery life.

5, shell material: the shell material of diving flashlight should have the characteristics of impact resistance, corrosion resistance and non-slip. Commonly used materials include aluminum alloy, stainless steel and plastic. Of these, aluminum alloy is usually the most common material because it is light and strong.

6, other characteristics: some diving flashlight also has special functions and characteristics, such as anti-blindness function, laser irradiation and so on. These features can be selected according to different needs and provide a more comprehensive diving experience.