It's actually in an urban environment, where there's usually significant ambient light from buildings and street lighting, that high candela is far more useful: long, dark alleys, overcoming photonic barriers, etc.
There's also the misunderstanding that high-candela beam patterns have insufficient spill to maintain situational awareness. In the case of the Malkoff E2HT and E2XTD that's not the case - beam shots here
in a typical low-light environment (click on photos). Bear in mind that a digital camera sensor can only register about 1/10th the contrast range that human vision can discern, so we can actually see
much more in the spill than the photos illustrate.
Here is a run time graph for the E2XTD and E2HT using the ANSI FL1 test standard;
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In regards to the Modlite Legacy heads, they very specifically state the output specs on a pair of CR123 cells (6 volts). The output at 4.2 volts on a Li-ion cell is likely lower.
In terms of size and weight, the Modlite heads are practically the same as the Malkoff E2XT series. I find a 1-cell light with the smaller Malkoff E2HT head carries more comfortably in a pants pocket, and that 500 lumens / 35,000 cd is plenty adequate for the situational awareness / personal protection role.
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