NEMA FL-1 Standards
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 icons are shown (right) indicate the important specifications for a torch.
| Peak Beam Intensity | Sample Size = 3 |
| What it tests: | The maximum luminous intensity of the torch, usually along the center of the beam. |
| How we test it: | Beam spot measured at 2m from the torch
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| Run Time | Sample Size = 3 |
| What it tests: | The time the torch can produce light, taken from 30 seconds after turn on until light output reaches 10% of the starting value. |
| How we test it: | Record time taken to get to 10% of starting brightness, average 3 measurements |
| Beam Distance | Sample Size = 3 |
| What it tests: | The distance from the torch where the light beam reduces to 0.25lux. |
How we test it: Beam spot measured at 2m from a torch, average 3 sets of results
| Light Output | Sample Size = 3 |
| What it tests: | Total luminous flux of the torch, as measured using an integrating sphere. |
| How we test it: | Measure torch output using integrating sphere, average 3 results |
Enclosure Protection |
Sample Size = 3 |
| What it tests: | Test for the degree of water resistance of the torch. |
| How we test it: | Test samples to a minimum of 100m for 30 minutes. |
All torches exceed IPX8 = Immersion beyond 1m
| Impact Resistance | Sample Size = 3 |
| What it tests: | Resistance to damage when dropped on a solid surface. |
| How we test it: | Drop from 1m onto solid concrete
Each sample to be dropped 6 times, in different orientations |