LIGHT FOR DEEP DIVE
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First: diving flashlight switch magnetic control switch, open the barrier pressure is limited, and vulnerable to the impurity of the water seepage, some o-ring seal even susceptible to corrosion, so the diving depth, generally within 30 meters, and the service life of the very limited! There is no switch, rotary switch, equivalent to strictly is basic to eliminate open Achilles' heel of the mark, is one of the highend and depth of waterproof diving flashlight universal use, waterproof depth is more than 100 metres.
The second: a torch light source Currently widely used CREE LED series, is the most used Q5 / R5 / T6 / SWC100W, lumen is a kind of light units, 100 lumens is approximately equal to high power 1 w! CREE Q5, brightness can reach below 230 lumens CREE R5, brightness can reach about 350 lumens CREE T6, brightness can reach 1000 lumens SWC100W, brightness can be up to 10000 lumens
Third: use the flashlight batteries, the brightness of the different types of rival battery and battery life have influence! The same number of different batteries also have very big concern, at the current market popular diving flashlight note ARCHON (the pupil) as an example. Note ARCHON D20, using two 18650 batteries, battery life under 1000 lumens highlighted in 1.8 hours!!! Note ARCHON D22, using two 26650 batteries, battery life under 1000 lumens highlighted in about 4.0 hours!!! Note ARCHON D33, using three 26650 batteries, battery life under low light of 1000 lumens in about 9.0 hours!!!
Fourth: tube body material plastic tube body: weight is light and flexible, but easy ageing, the time is long easy to seawater corrosion, and if not careful fall on the ground, scrapped a high probability of tube body, not durable. : aluminum alloy cylinder body weight is a bit heavier than plastic tube body, flexibility is a bit poor, but very corrosion resistant, resistant to impact. Price is more expensive, highend brand aluminum alloy 1.5 meters diving flashlight can free fall, and appearance
- Q: Can't swim and dive?
- Not swimming, but not afraid of water, it will be very simple. If you can not swim, and afraid of water, it may be more difficult, but there are still a lot of people who can not swim, after learning to dive, but also learn simple swimming.
- Q: As an aunt, there should be bags under the eyes, and recently like swimming, and every time after the tour to see particularly obvious bags under the eyes, very uncomfortable. Remember this year for the first time to swim goggles with relatively tight, the middle has not picked, highlighting the pouch until the third genius disappear. Then don't bring so tight, the middle also pick goggles rest, is now up to second days to eliminate pouch. I would like to ask you what friends have the goggles is not easy out of pouch? Is it better to have a larger frame? Can I take swimming goggles with me?
- Scraped the eye socket. Scrape a few times with your palms from the inside of the bag to the outside side to smooth. I hope so.
- Q: How to swim diving ah, I dive down immediately, and seek expert advice, it is best to have video, online copy of the answer does not
- 3, open the stopwatch, take a deep breath, start time, stop time in their own good time to breathe, record the time, repeat the above steps, the 5 time according to the time after taking the middle value for breath under water standard time
- Q: I like to take scuba diving goggles, my nose can be covered, my swimming goggles, my nose pinched, and I'll lose it, but I don't think most swimming glasses have noses
- Goggles.With the goggles can better ventilation, to ensure the quality of breathing, vital capacity, and enhance physical strength, ensure that the amount of swimming.Diving goggles are not convenient for ventilation, not suitable for long time swimming exercise.
- Q: How many kinds of swimming do you have?
- 2. breaststrokeThe breaststroke is a swimming pose that mimics the frog's swimming and is one of the oldest swimming strokes. In breaststroke, swimmers can watch for obstacles in front of them and avoid hitting obstacles. In the mid eighteenth Century, breaststroke was called "frog swimming" in europe". Because the breaststroke is slower, in the early twentieth Century freestyle competition (free swimming with a free position), the breaststroke is not as fast as other postures, which makes the breaststroke technique out of play. Then the provisions of the fina swimming breaststroke technology was able to develop.
- Q: Asked a diving Sanya that relatively professional, I can not swim!
- If you can't swim, be careful. Choose a professional and good one! You go to Taobao to find "GO Sanya", they are very professional, lessons learned, diving, very patient, with shore diving, with people very careful, good standards!
- Q: I want to go scuba diving in Phuket, but I can't swim. Is that ok?
- This is mainly to see the landlord afraid of water itself, but also not necessarily asked to swim
- Q: Always floating on the water, sink to the bottom of the pool, how to dive and swim? Who can teach me?! Thank you
- To learn that the frog jumped into the water pool; into the water and then forced waving hands and feet, I do not believe can dive;
- Q: Why do people say diving is not necessary to swim?
- Yes, in theory. In fact, there are many people who are so learned. The coaches I know all say that they can swim, but many people can't dive, but they can't swim faster, so long as you don't panic.. But for safety reasons, I suggest you learn to swim. Landlord test leisure diving certificate, if you can not swim independently, more than 200 meters is unable to give you even recreational diving certificate
- Q: When I was young, I learned to swim breaststroke, backstroke, self standing, swimming etc., but is not diving, do not know how to breathe, who under the guidance in the equipment without what next how to scuba diving suits?????
- DivingSwimming is the body in the water, do not swim in the swimming breath. A snorkel dive deep and hidden away. There are a lot of swimming posture, but most of them are only the breaststroke swimming (amateur used) and butterfly swimming legs (common occupation). Only the technique introduced here breaststroke swimming.Body postureBreaststroke swimming requires the torso and head remain horizontal, but began to pull down the arms slightly, to prevent the floating body.
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LIGHT FOR DEEP DIVE
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