‘Color temperature’ is a way to describing the color warmth/coolness of light. You may have seen this when buying light bulbs for your house, it is shown as a number 3600K or 5500K, etc. The higher the number the ‘cooler’ Read more…
The main reason Lithium-Ion batteries are used for LED torches, is that they have a high ‘energy density’. This just means they have a lot of power in a small size. A typical 186560 cell is rated at 4.2V (Volts) Read more…
“Lux” is the standard unit of measure for illumination (i.e. brightness) of a surface at a given point. This means the Lux value is only a point brightness NOT the overall output, but it is useful as a comparison between Read more…
“Beam Angle” is the angle of the light produced by the torch, this is measured at 50% of maximum power; this is also considered as ‘half angle’ as it is only the angle of one side of the graph (see Read more…
NEMA, produce a set of international standard that LED torches; should be rated against. First released in 2009, these standards are not compulsory for any torch company but are supposed to give the customer a fair way to compare torches. The Read more…
Lumen is the standard unit of measure for the total amount of light from a source, in all directions. This tells you how much light the torch produces, with no regard for the area, unlike Lux. This is demonstrated by Read more…
Burn time is the definition of how long in minutes or hours the torch will produce a useful amount of light. This is often measured in different ways by different manufacturers; refer to the NEMA FL-1 standards. We measure our burn time, Read more…
So you have decided you want to buy an LED torch? Easy, just go and buy the one that has the most lumens, right? WRONG! To correctly buy an LED torch you should understand a few things, firstly it’s not Read more…