![]() AA and AAA batteries are cheap and can be found anywhere, making them the battery of choice for general-purpose flashlights.Picking the right battery type not only provides better performance, but can also reduce the cost of operating your flashlight. Battery performance varies widely, and many are rechargeable. Capacitors do not store as much energy as batteries, so the 5.11 Tactical PC3.300 has a peak runtime of 13 minutes, with an option of 45 minutes from a lower output.įlashlight performance depends not only on the LED, but also the battery.Some lights use step-down regulation to extend runtime, Tactical and rechargeable flashlights typically have a runtime between 1-2 hours.Larger lights can house larger batteries, providing longer runtimes.Runtime depends on the capacity of the battery used, as well as additional factors such as whether power saving designs are used. User customization allows changing the mode sequence or enabling/disabling modes.Different brightness levels are available and typically accessed using a series of clicks.Simple and straightforward, click once to turn on, click once to turn off.LEDs can be electronically controlled for different brightness levels or output patterns. Common modes include maximum output, reduced output, strobe, or SOS. Some reflectors or optics can be adjusted for a variable spot to flood focus, but usually introduce artifacts, such as rings or holes, into the beam.Shallow reflectors give off a wide area of light, which is typically found on work lights and best suited for indoor use.Shallow smooth reflectors, orange-peel textured reflectors, hybrid smooth/textured reflectors, or TIR optics diffuse light into a larger hotspot.Deep smooth reflectors or total internal reflection (TIR) optics produce spot beams that are optimized for outdoor use.Typical intensity of an LED flashlight.Typical intensity of a tightly focused LED flashlight or spotlight.Our perception of brightness is non-linear, and for a light to appear twice as bright as another, its beam intensity has to be four times that of the other light. Peak beam intensity, reported in candela, represents brightness as perceived by the human eye and is related to how the beam is focused by the optical system (typically a reflector, lens, or optic). Typical output of a general purpose LED flashlight.Typical output of a mid-range LED flashlight.Typical output of a high-output LED flashlight.Typical output of a ultra-high outputLED flashlight.Light output, reported in lumens, is determined by the total amount of light coming out-the-front (OTF) of the flashlight, which is related to the LED’s efficiency and how much power it uses. The flashlight has battery over-discharge protection (when using lithium-ion battery), battery reverse connection protection, low voltage reminder function, memory mode function.īattery type: 1 high drain 18650 lithium-ion battery or 2 CR123A batteriesĮach flashlight has its own serial numberĭimensions (☐.5mm): (Head diameter) 26.There are many ways to compare the features and specifications of a flashlight, and in this article, we will explain the most common of these features. High power white light X-LED, color temperature 6500-6800Kĭata is obtained from outdoor continuous lighting test using Weltool 3000mAh 18650 high drain Li-ion battery and Panasonic CR123A battery. ![]() T2 has strong performance and simple structure, and can be used as emergency equipment carried every day.Īluminum alloy material, hard anodized surface, available in BK, ODG or GrayĪluminum alloy reflector, coated tempered glass lens It comes standard with a stainless steel pocket clip, which is easy to carry. T2 has a mode memory function, and has reverse battery protection, low battery reminder function and battery over-discharge protection function. The bezel is made of stainless steel with attack teeth, which are wear-resistant and drop-resistant, which can effectively protect the flashlight head. The T2 light head adopts Weltool's patented T-HC (Through-Hole Cooling) structure, which releases the heat generated by the LED and electronic components from the light head to the environment in time through air convection. T2 is a compact portable LED flashlight, using 1 18650 Li-ion battery or 2 CR123A batteries, full power output mode 1,730 lumens, 42,450 candela, throwing 412 meters, there are three brightness modes, full power output mode is suitable for short-term emergency use, The medium mode is suitable for outdoor, and the low mode is suitable for indoor or close lighting. ![]()
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