psdx
Gold Member
It will be a while before light fixture manufacturers use ISO standards for rating their output. The LED flashlight manufacturers started about 1-2 years ago. Before the standards I think they all measured them about as close to the emitter as they could. Now they are at a standard distance.
...so if you assume that everyone making these LED utility lights is doing what the flashlight manufacturers were doing - trying to get the highest output adding possible, you may not have an absolute output number but you should at least be able to quantify the relative differences between them.
...so if you assume that everyone making these LED utility lights is doing what the flashlight manufacturers were doing - trying to get the highest output adding possible, you may not have an absolute output number but you should at least be able to quantify the relative differences between them.