![]() ![]() WWLZ Bamboo Small 18350 Flashlight Review Tint vs BLF-348 ( 219b version) (affiliate link).WWLZ Bamboo Small 18350 Flashlight Long Review.Price of the WWLZ Bamboo Small 18350 Flashlight.WWLZ Bamboo Small 18350 Flashlight Official Specs and Features.WWLZ Bamboo Small 18350 Flashlight Review.There are many different kinds of light sources and LEDs that can be used too. Incandescent flashlights are often driven directly by the batteries without a driver.įlashlights themselves can take different forms, including head lamps, and can be made of plastic, aluminum, stainless steel, or titanium (see materials). The driver also can control different brightness levels to the light and special modes for SOS or strobe functions. For instance many LEDs need a voltage of about 3.6 volts, so if you only have one AA battery (1.2 to 1.5 volts), the driver will need to boost the voltage to something the LED can use. In the head of a LED light there might be a driver which regulates the voltage from the batteries to some value optimal for the light source. This switch is good for high current uses since the switch is very simple in construction. If the tailcap is unscrewed the light won't come on, if it is partially tightened you can use the button for momentary on, and if the tail is fully tightened the light stays on. Another type of switch used on some Surefire and 4Sevens Maelstrom lights doesn't click at all. There are also twisty switches where you twist the tail or head of the light to complete the electrical connection. Some lights feature electronic switches which work a little differently by sending signals to a microcontroller. Clickies can be "forward" (allowing momentary On when the switch is halfway pressed) or "reverse" (the light does not turn on until the switch clicks into place, but then allows momentary off). A tail clicky, when turned to On, completes a connection between the bottom, negative end of the batteries and the body of the flashlight where the electricity travels up to the head of the flashlight causing a difference in potential that is used to power the light source. While traditional lights have this on the side, smaller lights usually put the switch on the tail of the light, so that it can be activated by your thumb. Rechargeable batteries include NiMH and lithium-ion batteries among others, offering "guilt-free lumens" and often greater performance than primaries.Ĭurrent from the batteries is controlled by the power switch. Disposable batteries, or " primaries," include heavy duty, alkaline, and lithium batteries. Powering the light are batteries which are usually stored in the body of the flashlight with the positive end towards the front. And still other lights let you move this lens and go from flood to throw, similar to Maglites. But some lights have a curvilinear lens that concentrates the light similar to a reflector. Better lights have glass lenses with anti-reflective coatings that allow more of the light to pass through the lens rather than bounce back into the light (even better than plain glass). Usually there is a flat glass or plastic lens over the reflector. ![]() Mag Instrument's Maglites have a reflector that moves with respect to the light source allowing a variable focus that can yield a wider flood or a tighter spot of light. Smaller lights are easier to carry in a pocket but will generally have more floody light. A bigger, deeper reflector is able to focus the light into a smaller hotspot and offer more throw and less spill. Reflectors have a parabolic shape which can take light rays emitted from a light source in the parabola's focal point and send the reflected rays all in the same direction (rays that go out the front without hitting the reflector will provide some spill). Most flashlights include a reflector around the light source to gather the light and focus it out the front. Incandescent light bulbs have made progress too, with xenon and halogen bulbs available. But in the past ten years or so LED flashlights have made enormous leaps in performance offering more light, longer bulb life, and greater efficiency, meaning you can use smaller batteries or that your batteries will last longer. Traditional flashlights have an incandescent bulb and are powered by a couple of alkaline batteries. ![]()
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