Those who have made at least one nocturnal you know: this is one of the most fascinating diving methods at our disposal.
During the night dive is a characteristic fauna, composed of species that usually are only active at night. Moray eels and Octopus hunting, out of their burrows, stingrays, lobsters… The protagonists of a Nocturne can be many. Everything depends on the operation of their flashlights.
Without light, there is no night dive, no matter how good is the point. And most annoying thing in the world than a flashlight that leaves us in hand well in time to get rid of the risk of an obtrusive blackout, just take some care. We must, first of all, learn to identify a good flashlight, before you buy it.With the right equipment in your hands, you just need to be aware of preventive maintenance, which is simple, quick and cheap. Following this advice, their flashlights down hardly.
In the Brazilian market is all sorts of diving flashlight, the models that fit in the Palm of your hand until large lanterns with batteries or rechargeable batteries.At the time of purchase, pay attention to the following details:
Make sure that the body of the flashlight is compatible with the depth that you plan to achieve. The wall thickness can range from 3 to 10 mm. Due to the effects of pressure, deep dives require flashlights more robust and sturdy body.
Many divers wreck and cave prefer lanterns with handle of type stick, allowing the easy use of reels and other equipment. The most common are the grips of the pistol handle types and bat. For most recreational divers, choose between them is merely a matter of preference. Before buying your lantern, think of the diving situations that you intend to cope with it. This will facilitate the choice of handle.
Certain types of lamp lend themselves better to certain types of diving. Dichroic lamps, HID and LED by example, are preferred for technical divers, that require maximum performance of light in situations such as cave or wreck penetration. At the moment, due to your luminescence, resistance and autonomy, the Led light bulbs are the Favorites, dichroic reflector, The lamp works as a multifaceted mirror made of squares that reflect light on each other, improving the focus. Are also common xenon lamps, halogen and krypton.
Night dive practitioners know how much it hurts in the pocket the price of batteries. Most flashlights works with ordinary alkaline batteries. They are expensive and can last 1 hour on a single dive, depending on the type of flashlight used. In certain models of the common alkaline Lantern can yield up to 10 hours of lighting, which makes them financially viable. An alternative is to use rechargeable batteries, that free you from buying new batteries. Simply recharge and ready. They require, however, some special care. Lead, once used, should be retained. The nickel-cadmium batteries and Nickel-Metal Hydrate should be stored with minimal load. The Nickel-Metal Hydrate batteries are smaller and last longer.
Remove the o’ rings using a blunt object or rounded tip or when possible, only the fingers.
Carefully examine the o’rings, looking for cuts, creases or anything that may harm the total seal flashlight.
Lubricate the o’ rings with silicone grease, using brush or fingers, so that they stay bright. But don’t overdo it. Excess grease attracts sand and lint, compromising the correct sealing of the flashlight.
Lubricate the channels where are installed the o’rings. Before that, remove any hairs, grains of sand or old grease, using, preferably, a firm bristle brush or an old toothbrush.
While reseating the o’rings in their channels, make sure that no foreign body has been arrested in silicone grease.
Before closing the flashlight, check that the contacts are not with any kind of corrosion. This may cause some insulation, preventing the lantern light.
If there is corrosion, clean the contacts with a special spray for that. In the absence of such a spray, use a fine sandpaper or rubber.
If the flashlight has screw cap, place the lid and turn counterclockwise until you feel or hear a click. It indicates that the thread is properly seated. Only then turn the cover clockwise to complete the closure.
If the Lantern has acrylic transparent cover, the entire length of the ring must be in contact with the lid, forming a brilliant track.
If the flashlight has quick-type lock, make sure that the ‘ rings are in the correct position before closing it.
In the event of flooding during the dive, remove the batteries as soon as possible and soak the flashlight in a container with fresh water.
Never close the flashlight in dark places, where you can’t see exactly what you’re doing. This oversight is responsible for most of the flooding of flashlights.
Never store your torches with batteries, they may leak acid and corrode your flashlight.
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