The problem about power LED flashlight: buy LED flashlight, some consumers blindly pursue high power flashlight, the higher power that represents the brightness is high, this is actually a misunderstanding to buy a flashlight. LED is a flashlight in the market is very popular, one of the reasons is because of its low power consumption, using the same battery capacity, long lighting time than ordinary flashlight, flashlight and between the power and the brightness is not completely proportional relationship, this also relates to a solar energy conversion, the greater the power only that, energy consumption is high, in fact, as long as you think about why the 30W yellow light as 15W energy-saving lamp brightness high clear white. Similarly, a flashlight lamp brightness, mainly to see its luminous intensity, rather than power, when the same lamp core installed in different lamps, the luminous intensity is also different. At present, in order to cater to some consumers, the market has a number of manufacturers have virtual power.
About to buy the LED flashlight: a good flashlight, a flashlight is not expensive, it may not be a good work flashlight, but a suitable flashlight, only for their own use, is the best. If you do not understand the LED flashlight, flashlight can be purchased from your purpose and request to choose a suitable for their own products, hope that the following words can help you buy a suitable flashlight:
Selection criteria:
A usually walk lighting flashlight. In general when they go out, only for the lighting when walking, in general, require adequate light, medium brightness, good color rendering. Walk on the flat road to brightness demand is not high, a power of more than 1W AA package is enough, if you use AA rechargeable battery, then use power points. If the road is the countryside or mountain road, I do not recommend using the AA package, the best 18650 cheese, the current reaches 750MA, LED power consumption is about 3W. In the case of dry pavement with white light LED on the line, if it is a mountain or in slippery conditions, it is best to use warm white or natural white LED to add color, at the same time, can have large power point with high power package package, after all, safety is the most important. This kind of flashlight according to the economic strength of the individual purchase, generally choose the low-cost barrel is enough.
Two, carry the package requirements slightly higher than walking with cheese, but usually walk and packages have a lot in common, the difference is only in the case of similar performance to requirements, must be small enough to carry conveniently. I personally think that carry the package requires much higher than walking with barrel. The brightness in this manner with the most high, or in the second. Waterproof performance can be required to prevent heavy rain. According to the economic strength of the individual, generally choose a less expensive package, after all is with their day, high utilization rate, of course, have a good point.
Three, outdoor search (hunting, to highlight, long-range, general requirements necessary) Pan light, special requirements of even the best of no light, brightness is better, color mainly according to the weather and the need to search goals. The cheese is demanding. This kind of package must use 18650 big (large power, high brightness, long-range, following the flight time of 1.5 to 3 hours); required to achieve a higher brightness: many are overclocking on LED, limit the use of LED current tends to reach 18650 cheese, the current reaches 1000MA the average, up to 1200MA is close to the limit of Q5 LED. All kinds of battery life: the pursuit of brightness, with 18650 head, power 3W, current 750MA cheese is the minimum requirement, life time of three hours; the current 1200MA power up to 4.5W, this is the limit of Q5 LED, because of the boost circuit, current 1200MA LED, the current battery is may reach 1.2 to 1.7A, life time of 1.5 hours. What circuit to stall: high, middle and low, reasonable, generally do not burst flash (to prevent misoperation due to their exposure, let prey escape). The reflective cup is generally used in deep large caliber smooth cup. The general appearance of cheese is black, afraid of reflective opponents found, and at least can prevent rain shower. The price according to your personal needs and how to achieve long-range performance, in order to achieve high brightness and super long-range performance, general selection of high cylinder if compromise in brightness and long performance and appearance etc, it can be used in low-cost package.