I had the opportunity to give the Lumens Factory EO-13 (13V 700 lumen) lamp a good workout tonight. It is in a Wolf Eyes M90 with extension tube powered by three Wolf Eyes 168A (2200mAH) cells. This was an informal test using another Wolf Eyes with a 250 lumen lamp on fresh batteries as a comparison at different times during the test.
The throw and total output of this lamp is amazing!
For the first 35 minutes of continuous operation I could not discern any reduction in output. From 35 minutes to 45 minutes there was probably some reduction in output but the EO-13 still walked all over the fresh 250 lumen lamp. By 50 minutes the EO-13 was still marginally brighter but the beam color had a tint of yellow when compared to the Alpha-Nine on fresh batteries. By 55 minutes the output of the EO-13 was about on par with the 250 lumen lamp on fresh batteries. By 58 minutes I could tell the output was fading fast and the protected cells kicked off at 59 minutes and 15 seconds of continuous run time. This was much longer than expected as I believe the EO-13 is rated at 40 minutes.
Warning - I did not heed the heat warning of 5 minutes continous use. However, even though twenty degrees warmer than last night, it is still pretty chilly in Iowa right now at a little below zero Fahrenheit. During the near hour of continuous use the body temperature of the flashlight never exceeded "uncomfortably frigid". The front third of the bezel was somewhat warm but not enough to keep my fingers warm - I am guessing no part of the exterior ever approached body temperature. Immediately after shutting down we felt the batteries and the back two were very cold while the one nearest the lamp was maybe at room temperature.
I hope these ramblings are of value to someone. Not very scientific but a gauge of performance during real use. I find this to be a very useful lamp and am pleased that the runtime is longer than I expected.
Lloyd
The throw and total output of this lamp is amazing!
For the first 35 minutes of continuous operation I could not discern any reduction in output. From 35 minutes to 45 minutes there was probably some reduction in output but the EO-13 still walked all over the fresh 250 lumen lamp. By 50 minutes the EO-13 was still marginally brighter but the beam color had a tint of yellow when compared to the Alpha-Nine on fresh batteries. By 55 minutes the output of the EO-13 was about on par with the 250 lumen lamp on fresh batteries. By 58 minutes I could tell the output was fading fast and the protected cells kicked off at 59 minutes and 15 seconds of continuous run time. This was much longer than expected as I believe the EO-13 is rated at 40 minutes.
Warning - I did not heed the heat warning of 5 minutes continous use. However, even though twenty degrees warmer than last night, it is still pretty chilly in Iowa right now at a little below zero Fahrenheit. During the near hour of continuous use the body temperature of the flashlight never exceeded "uncomfortably frigid". The front third of the bezel was somewhat warm but not enough to keep my fingers warm - I am guessing no part of the exterior ever approached body temperature. Immediately after shutting down we felt the batteries and the back two were very cold while the one nearest the lamp was maybe at room temperature.
I hope these ramblings are of value to someone. Not very scientific but a gauge of performance during real use. I find this to be a very useful lamp and am pleased that the runtime is longer than I expected.
Lloyd
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