Wurkkos DL08 underwater video

[AbyssTek]

I hope it helps someone if they're interested in buying it.

 

[lexvil]

Some night fun with the DL08 on Curacao

 

[lexvil]

 

[ChrisMBC]

DL08 and an iPhone @ 50m this week. I find it’s a pretty decent photo/video light, as long as you’re relatively close to the subject. Makes for a great primary light for OW dives, with a spot that works for general use and the flood. Easy to swap between the modes as well.

 

[d^2b]

What is the run time (in real life) on this light in (low to medium intensity) flood mode? I'm considering it as a replacement / backup focus light for my current Weefine Smartfocus 1000. I don't really need more light, but I find it annoying that the battery on my focus light runs down before the camera or strobes.

Also, what is the actual battery? Is it removable?

EDIT: I saw on aliexpress(!) that the battery is a 21700.

 

[ChrisMBC]

What is the run time (in real life) on this light in (low to medium intensity) flood mode? I'm considering it as a replacement / backup focus light for my current Weefine Smartfocus 1000. I don't really need more light, but I find it annoying that the battery on my focus light runs down before the camera or strobes.

Also, what is the actual battery? Is it removable?

EDIT: I saw on aliexpress(!) that the battery is a 21700.

I did a burn test on medium strobe mode, ran for 127 minutes before dropping down. The battery is a 21700, and there’s a USB-C charger built into the battery tube.

 

[grantmac]

I did a burn test on medium strobe mode, ran for 127 minutes before dropping down. The battery is a 21700, and there’s a USB-C charger built into the battery tube.

Think it's anywhere near 3800lm?

 

[d^2b]

I noticed on the Wurkkos site that the replacement batteries (and presumably the originals) are "unprotected". Does anyone know more about this? What is the (not-present) protection circuitry for? Over-discharging?

EDIT: I'm wondering how safe it is to charge these batteries in my Nitecore UMS4 charger.

 

[ChrisMBC]

I noticed on the Wurkkos site that the replacement batteries (and presumably the originals) are "unprotected". Does anyone know more about this? What is the (not-present) protection circuitry for? Over-discharging?

EDIT: I'm wondering how safe it is to charge these batteries in my Nitecore UMS4 charger.

Protection circuits are typically for undervoltage protection. In the DL08 you don't need to use a protected cell, as the undervoltage protection is handled by the light itself (and this makes sense, when the charger is also built into the light body).

You're totally fine to charge the battery on a standalone charger like your Nitecore. I'd look at the voltage of the cell when you initially put it on, it should be above 2/2.5V. Any lower than that and the cell has been over-discharged.