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It is a classification of underwater lighting fixtures. The earliest diving flashlights were only used for lighting for frogmen and divers. Later, they were gradually used in areas such as water rescue, underwater engineering operations, underwater power and communication cable maintenance, marine aquaculture cage inspections, and diving vacations.
In the face of water disasters, we need professional water rescue and salvage teams. Diving flashlights are an essential tool to improve the timeliness of salvage and rescue at night. With the improvement of human living standards, interest in underwater creatures has become stronger; we build underwater engineering projects and develop marine/ Neihu aquaculture; human exploration of mysterious underwater shipwrecks/caves; national marine geographic exploration and development and utilization of marine resources; new trendy underwater wedding photography and diving vacations, etc., make diving flashlights widely used in oceans/lakes /Inland River/Artificial Swimming Pool/Indoor 5-meter Mermaid Diving Site, coupled with the advancement of LED light source technology and CNC processing technology, diving flashlights are no longer simple shapes, and can appear in various appearances to meet the needs of different underwater environments. Demand. Diving flashlights are subdivided into diving spotlight flashlights and underwater video fill lights/split technical diving lights/high-power portable searchlights.
With the improvement of human living standards and the increasing desire to explore the mysterious sea, diving has gradually developed from individual areas to all seaside cities around the world, and then to the booming diving training clubs in inner lake cities. Because the light on the seabed is relatively dim, people expect Being able to see everything under the sea clearly, and also hoping to take photos of the pristine underwater scenery, a lighting tool with good waterproof performance has become an urgent need.
We have professional water rescue teams and fire rescue teams for natural water disasters caused by bad weather and falling water disasters caused by accidents. In order to save precious lives, rescuers must race against time. Night rescue and turbid water rescue require very good penetrating power. lighting fixtures
Aquatic seafood has also become a nutritious food that humans like, so more and more aquaculture and fishing are happening! Aquaculture and salvage operators need professional underwater lighting fixtures
To build their own homes, humans need to open roads across mountains and build bridges across water. The construction and development of more underwater/wading engineering projects are factors that promote the research and development of diving flashlights. Underwater power communication laying and regular inspections require underwater fill-in lights, which can be used with underwater robots to capture clear videos and detect and handle faults in a timely manner.
The development and improvement of any product is driven by market demand. Therefore, more companies, structural engineers, and electronic engineers are exploring bright flashlights for ordinary living lighting and constantly adopting various new technologies to improve the luminous source and performance of bright flashlights. Waterproof performance/optical performance. The ultimate diving flashlight application was born and developed rapidly.
Due to the booming development of diving sports and diving training institutions in recent years, diving flashlights are an indispensable main diving equipment for divers. Diving flashlights not only provide light for divers, but are also a tool for underwater communication and information transmission during diving teaching and diving guides.
Diving flashlights and diving suits are two important diving tools for frog divers. Marine aquaculture in oceans/rivers/reservoirs is developing rapidly, especially deep-sea cage culture is becoming more and more popular, driving a large number of frog divers to specialize in seafood fishing ( Fishing sea cucumbers, fish and shrimps, kelp, abalone, etc.), the diving and salvage industry association has developed rapidly, and more companies are involved in the construction and salvage of boat moorings, the construction and maintenance of cross-sea bridges, and offshore drilling and exploration platforms to find more energy, which can provide humankind with more energy. Contribute to sustainable development.
In recent years, diving flashlights and underwater video recorders have become necessary auxiliary photography and video lighting equipment for new underwater robots. Many underwater projects (sea fishing, night fishing, water rescue, submarine cable inspection, deep-sea aquaculture cage daily Underwater robots are used for inspections and ship bottom cleaning. The waters are complex and the water quality is poor. A good diving light can allow land operators to clearly see the details of the underwater situation.
Diving can be divided into different categories according to different standards!
There is a big difference between night diving and day diving. Day diving has low lighting requirements, and general brightness is enough. Photographic fill lights are mainly used to improve color rendering. Night diving requires diving flashlights with high brightness and good light concentration or underwater videos. Lights, each creature is active at different times, and those who dive at different times will have different experiences and feelings. Compared with day dives, night dives can see or photograph the beautiful scenery of underwater creatures.
From strong flashlights to professional diving flashlights, flashlights play an important role in diving, making divers’ underwater life safer and simpler
The initial diving flashlights were mostly mechanical knob switches, and gradually expanded to include magnetic switches, push button switches, and remote electronic signal control switches! The diving depth has gradually increased from the initial IP68 standard of 2 meters to 30 meters, 60 meters, 100 meters, 150 meters, 200 meters, 1000 meters, etc. Each switch has its own advantages and disadvantages.
Commonly used are CREE series LEDs, Luminas series LEDs, domestic OSROM LEDs, etc.
The most commonly used ones are CREE XML U2/ U3/ COB, Luminas SST20/SST40/SST70
Lumens is a unit of light, 120 lumens ≈ 1W.
CREE U2, the brightness of a single unit reaches about 1,000 lumens; CREE U3, the brightness of a single unit reaches about 1,200 lumens; CREE COB, the brightness of a single unit reaches 12,000 lumens
Luminas SST20, the brightness can reach 1200 lumens; Luminas SST40, the brightness can reach 2000 lumens, Luminas SST70, the brightness can reach more than 4000 lumens
Different types of batteries have an impact on the brightness and battery life of the flashlight! The different numbers of the same battery also have a great relationship. The batteries currently used are mainly 18650 lithium battery/26650 lithium battery/32650 lithium battery/21700 power lithium ion battery/battery pack.
18650 lithium battery, the capacity ranges from 1000-3400, because many brands have false standards, the actual capacity of 2600 mAh is more common and common. 18650 lithium battery is divided into ordinary stand-rechargeable battery and Type-C direct charging port battery. With direct charging The price of the port is slightly more expensive, but charging is very convenient. You can share mobile phone chargers/USB power strips/computer laptops/car chargers.
26650 lithium battery, due to frequent use and technological advancement, has a capacity ranging from 2000-5800mAh. It is divided into ordinary cells and imported cells. The capacity of imported cells is high, above 5100 mAh. There are many actual standards on the market, and there are also There are many false labels. For those that require long battery life, 26650 lithium batteries are generally used, and the lamp tube is slightly larger.
Due to low demand and lack of technological advancement, the capacity of 32650 lithium battery has remained at 5500-6000 mAh. Because of its large size, it is only used by underwater photography lights on the market, but not by spotlight diving flashlights.
Different materials have different heat dissipation effects, and the equipment used to write the program is also critical, which is related to the stability of the program. The entire power supply and control system are controlled by large and small electronic parts and circuits. Circuit boards of big brands are resistant to high temperatures. Good stability and long service life.
Plastic barrel: light weight, flexible to use, very low cost, but easy to age, easily corroded by seawater over time, and not resistant to bumps, has a high chance of being scrapped, so using a low-end diving flashlight worth tens of dollars will only For freshwater diving, not suitable for saltwater diving.
Aluminum alloy barrel: It is slightly heavier than the plastic barrel and has less flexibility. The aluminum alloy barrel is divided into ordinary aluminum alloy and aviation high-grade aluminum alloy. At present, some low-end and low-end Jiangsu and Zhejiang series diving flashlight brands use ordinary aluminum alloy, which is easy to process and has good appearance. Ordinary oxidation and corrosion resistance are slightly higher than those of plastic shells. Because the material price is low and the price of diving flashlights is also very low, it is easy to form a batch advantage.
Aviation aluminum alloy (mostly T6061 magnesium aluminum alloy) is relatively expensive and difficult to process. Its appearance is military grade III hard oxidation. It is represented by the Guangdong brand ARCHON. Most mid-to-high-end products use this high-end brand. Aluminum alloy is used as the shell of a diving flashlight. It can be dropped freely from 1.5 meters, is resistant to collisions and seawater corrosion, and has a long service life. The price of diving flashlights is relatively expensive.
Most of them on the market use rubber/silicone/fluorosilicone rubber. Different parts have different requirements for sealing rings. The lamp head needs high-temperature resistant fluorosilicone rubber. It is generally better to use rubber for the sealing ring at the tail of the lamp.
Glass lenses have good light transmittance, but are not impact-resistant, so be careful when using them. They are mostly used in ordinary and cheap diving lights!
Acrylic lenses have poor light transmittance and are more impact-resistant than glass, so they are not an ideal material either!
Bulletproof PC lens has good light transmittance and is very impact-resistant. It cannot be smashed by a hammer! However, it is expensive and increases the cost of the flashlight. It is indeed an ideal diving flashlight lens. It has long use time and obvious scratches. It is only good for light transmission. Slight impact.
Tempered coated glass, through physical tempering treatment, has good light transmittance, pressure resistance and impact resistance, is difficult to process, and has a relatively high cost. It is mostly used in mid-to-high-end diving flashlights.
A diving flashlight is a type of underwater lighting fixture. The earliest diving flashlights were only used as spotlights for divers. However, as people became more interested in viewing marine life, they also discovered and explored underwater ancient relics, National Marine Geographic exploration, and the latest trend of underwater wedding photography and mysterious caves. Exploration expeditions, marine energy exploration drilling platforms, underwater robots and underwater cameras are widely used in water rescue and breeding and fishing, thus driving more market segments of diving flashlights. They are upgraded and transformed from diving flashlights and belong to several higher requirements. The best diving flashlight!
1） Most of them use imported CREE series and Luminas SST series.
2） The focusing angle is generally about 5.5°-15°, and the focusing torque is generally about 3°-60°.
3） The brightness is basically 1200-12000 lumens, with 2000 lumens being the most common. It is also widely used in various diving environments.
1） Most use COB lamp beads with a brightness of 1200-12000 lumens, and commonly used 3500-6000 lumens.
2） Reduce the head of the diving flashlight, remove the reflector, and use a plastic or aluminum flat cover instead. The light emission angle is 110°-120°, which provides a wider lighting range and uniform flood light, making it easier to photograph complete underwater animals and plants.
3） The color temperature is required to be around 5000K and the color rendering index CRI80-95+, so that the photographed images or videos can be closer to the true color of the subject.
4） Underwater videos are all short videos, and the lights are turned on when shooting. Generally, the minimum required time is one dive (one bottle of gas), and the battery life is 50-180 minutes.
5） The most important thing is that it has a dedicated connector and bracket to facilitate connection with the underwater camera, making lighting more convenient and capturing photos from multiple angles.
6） Add multiple light tubes, change the way the light beams are illuminated, and take macro shots of tiny creatures on a black background (aplysia/seahorse/unicorn fish, etc.)
From strong flashlights to professional diving flashlights, flashlights play an important role in diving, making divers’ underwater life safer and simpler
7）Using a maximum power of 100 watts and 10,000 lumens LED light source, it is the brightest professional fill-in flashlight. It feels like daytime when turned on at night!