I do not own one but I suspect you will find the same thing with most of the high lumen lights in that price range. Not sure if you tried after recharging the battery or see what it does with the CR123s?? I suspect that is the difference between these lights ( Fennix , Spark, Zebra ect ) that are high lumen and in the 100 dollar price range or less vs The Sten or Rude Nora or Scurion that are 375 dollars and up. What you get for paying three times more is the ability to run at max for a longer amount of time. Most of the time I would only use that high setting for a short time to look up a dome or pit then go back to a 140 lumen range for most caving. My Duo insert will go down from its high of over 300 lumen if left there very long but that is what it is designed to do. Recharge the battery and see if that changes anything. Chad and Dean both have these lights and they likely know more than I . For me , the ability to run on high or turbo for longer periods is not worth have to pay three times or more for the high output lights like Sten. If I did all my caving at Camps Gulf or The Sarwack Chamber in Malaysia or The Salle De La Verna in France it may be worth the extra money, but like most cavers I do not.jeffkruse wrote:I received my Spark SD6 460NW on Friday. I appreciated how the box was packaged for shipping in a simple padded envelope.
The light looks great and the headband looks good to. I was a little disappointed with the threading as I am use to Fenix lights but with a little care they should be fine.
I tried the light on turbo and it only ran for 5 to 7 minutes before reducing the output down to only what I assume was the next lower mode 200 lm.
I tried to switch it back to the turbo mode but it did not change. The light was warm.
There is no mention that running the light on turbo is limited to such a short time.
So what I end up with is a 200lm flood light that will do short bursts to 460lm.
I also will try to limit it’s exposure to water because it doesn’t seem as rugged as a Fenix.
Overall I am happy with the light but a little disappointed with it. Hopefully I’ll get it in a cave this weekend and see how it does.