I have 4 Zebralights all SC600's. All of them are astonishing. All of them are the highest quality production lights I have yet seen. The fact the electronics are potted and designed as well as they are in such a small package is very impressive. That being said I STILL have never really been able to get into ALL the lights laundry list of capabilities. A two stage switch would help ZL a LOT.
As for alternatives to the Jet III M Pro there actually is the new JetBeam Jet IIIM with a supposed 1400 lumen max. I have this light and am not impressed. The older "antique finish" XP-L HI version is in my opinion still a better light. The new IIIM is like an inch longer. The side switch is not good either.
Thus I agree with the posters above about the Armyteks. I have so many Armyteks I lost count. The current gen Armytek Predators, Dobermans and near any light they make is IP68 rated, have some of the BEST OPTICS and BEST ANTI GLARE COATED lenses I have ever seen in any light at all. EXPENSIVE but worth it.
The current AT Predators. I actually DO have every single variation of it. From XP-L HI Limited Editions to the now 1400 lumen XHP35 HI Predators. I actually prefer the OLDER XP-L HI Limited Edition variants despite the output difference. The Limited Editions are getting much harder to find though. The beam profile out of the XP-L HI Limited Edition Predator Pros is one of my personal favorites. It is very distinct and unique.
The beam profile out of the Limiteds I have read some complaints about on this site. What folks need to know is that ALL the pre-XHP35HI Predator Pros (current gen) put out THAT beam profile by design for a reason. What makes the beam profile so unique is the distinct VERY BRIGHT hot spot has a THICK corona around it THEN very good spill. Some think they are defective or badly designed or "something is wrong with the reflector". No nothing is wrong with the reflector. That THICK corona around the hot spot is by design specifically.
How does that beam profile affect anything? I have found it helps out greatly at the lights max 400 yard range. At the lights LONGEST throw range that THICK corona around the hot spot actually makes the hot spot much easier to pick out and stay on visually.
Dobermann Pro Limited Edition. No it does not throw as far as the Pred Pros and the beam profile is not as wide but it fits into a pocket much easier. They are Armyteks though. They come with the BEST sheaths I have yet to see any production light come with.
New XHP35HI variants are now so BRIGHT that the beam profile despite being nice and wide lost the definition the Limited Editions have.
Armytek Predator Pro XP-L HI "White Light" (cool white). This is the beam profile I am talking about. The current Gen Pred Pros pre XHP35HI will have beam profiles that look like this. Note the thick corona and very good definition profile. Basement new white painted wall test.
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It is actually a lot brighter in person.