So you have decided you want to buy an LED torch?
Easy, just go and buy the one that has the 'most lumens' right?
Read more: How to select a torch?
Burn time, is the definition of how long in minutes or hours the torch will produce a useful amount of light.
Lumen is the standard unit of measure for total amount of light from a source, in all directions.
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.
Read more: NEMA FL-1 Standards
“Beam Angle” is the angle of the light produced by the torch, this is measured at 50% of maximum power;Read more: What is ‘Beam Angle’?
“Lux” is the standard unit of measure for illumination (i.e. brightness) of a surface at a given point.Read more: What Does ‘Lux’ Mean?