The importance of LED Flashlight Run

Apr 24th, 2012 | Posted by | Filed under LED Light

Run time is a key trait to examine when selecting an or headlamp. Run time measures how long a flashlight or headlamp will work on one set of batteries. This measurement is important for many different reasons. For example, an enthusiastic fisherman might select an based on run time because he hates switching out batteries during out-back fishing expeditions. In a wilderness or home emergency, particularly if batteries are scarce, your flashlight’s run time could become a critical factor in your survival. Every consumer can appreciate run time as an indication of a flashlight’s efficiency; well made models will typically feature longer run times.

How Run Time is Measured

The American National Standards Institute’s (ANSI) flashlight ratings include a logo for run time. The standard design, which manufacturers can display on their packaging, lists the hours or minutes an incandescent or LED flashlight can run on one set of batteries. Usable power is defined as 10 percent of original light output; therefore, run time is calculated from the moment the flashlight is turned on at full power until it emits just 10 percent of its original beam.

However, some flashlight and headlamp manufacturers prefer measuring run time differently. That’s because many LED flashlights and headlamps are still quite bright at 10 percent of their original power. For instance, a high-performance headlamp could shine 350 lumens at full power; 10 percent of that amount would be 35 lumens – still a usable amount of light. To accurately describe their torches’ run times, some manufacturers instead measure the amount of time that a flashlight can run while providing the light of the full moon at two meters. This is considered the bare minimum amount of light required for emergency situations.

Run Time Drivers

There are many different factors that influence a flashlight’s run time, including:

External temperature. Extreme cold or heat effects battery performance. LED flashlight or headlamp packaging doesn’t typically include run time information for extreme temperatures, but it’s smart to keep this phenomenon in mind while using your flashlight.

Number of . More create more light that can reach farther into the dark. However, more also require more batteries to sustain run time.

Brightness. You can conserve battery power by using flashlights on lower brightness settings. Typically, run time is measured according to the brightest available setting, so you should be able to extend your LED flashlight’s run time by using a dimmer setting.

Number and dimension of batteries. Flashlight designers completely grasp which they should include additional batteries to extend run time. Similarly, bigger batteries lift energy levels. LED flashlight engineers should harmony product weight, increased battery expenditures near to the customer end, and run time. The dimension and quantity of batteries required is a little something to uncover when you decide on an LED flashlight.

Do not mistake run time with . run time factors out how prolonged a flashlight can run on one set up of batteries. LED existence actions how prolonged the LED bulbs in every one flashlight will function. for just about any reasonable comparison of run time, look at LED flashlights utilizing the ANSI FL1 Standard. once the headlamp or LED flashlight you’re contemplating doesn’t show the ANSI standard, see in the event you can arrive throughout a comparable measurement, which consist of the quantity of several hours the product will run until its output will be the actuality that in the complete moon.