The selection of lamps and the use of headlamps is one of the most important equipment for the survival of the wild, “work to do the right thing, must first benefit its tools”, and the right choice of tools, more can make you easily cope with in different environments. There are many kinds of headlamps, and we have different choices depending on their efficacy.
The choice of lamps and lanterns is a more troublesome problem, function, price, weight, volume, versatility and even appearance will affect your final decision, then start from the most basic needs, how to select specific lamps and lanterns at a specific time and under a specific environment.
a. If you do not walk at night, do not need to use it to search for water at night, just leisurely dinner in the camp, you do not need to use too complicated lamps, in this case, the most simple LED lamps are enough, lighting time is long, economical, convenient and small enough, the most popular 25 pieces of 5LED headlamp is a cheap choice. A variety of ordinary tsets are also good (though sometimes it’s best to DIY a headband).

b. If you are often in the field, you may not have the experience of driving the mountain road in the rain at night. In this case, you will not have a incandescent light source with enough brightness, good waterproof and reliability, relatively power saving, and far range is your priority.
c. If you plan to take a long donkey trip, you need both enough lighting time and necessary lighting intensity, and having two different types of lamps with different batteries at the same time may make you depressed. Therefore, dual light source lamps are your best choice. We have to do the right thing.

A. Winter
Unless you have the strength to carry plenty of spare batteries, the best option in northern winter or snowy mountains is a dual light source lamp with an external battery case. You must make sure that the headlamp can be operated easily while wearing thick gloves.
B. Diving
Submersible lamps emphasize absolute water resistance and reliability, adequate lighting time and high brightness requirements, preferably with standby bulbs that can be used immediately. The requirements of volume and weight are not very harsh, the use of handheld lamps and lanterns is better flexibility, to provide double power, double bulb selection to ensure the best reliability and practicability of water use.

                                                 
C. Explore the cave
The environment to deal with the cave is more sinister, water, falling rocks and other requirements of the headlamp must have strong waterproof characteristics, of course, it should also be convenient and helmet combined, long time cave with carbide lamp in this temporarily do not dabble. High brightness is a must. In order to deal with the unimaginable predicament caused by the sudden extinguishing of the bulb in the process, it is convenient to turn on the second light source in time. The lamps with dual light source are the most appropriate.
D. search
If it is used for outdoor rescue and search, there is no doubt that brightness and range are put in the first place, then usually two kinds of sacrifice will be made, sacrifice weight and volume, Maglite 6D or 6C May be the world’s most classic police lamps in the past 20 years, 6C or D electric series, ensure extremely high brightness, range and sufficient use time. The sturdy aluminum alloy and the traditionally reliable waterproof design are impeccable, but the only big problem is that it’s a bit bulky and heavy.