Convoy 4X18A 70.3 4000k Review

Specs:

LED: Cree XHP 70.3 4000k
Battery: 4x 18650 (button top and flat top )
Driver: Convoy 6v 8amp boost driver
UI: 3 Modes with strobe shortcut
Reflector Type: OP
Thermal Regulation: Step down to ~40%

First impressions:
Yet another hefty light from Convoy. For a 4x 18650 soda can light, its on the bigger side, which is a good thing for sustained brightness. Good heatsinking. The 70.3 HI fixes what I hate about the 50.2 and 70.2 once and for all! No "Cree green" or tint shift! Just beautiful 4000k light.

Build:
Threads are smooth. Build is solid. Mine had a slight defect on the threads on the body that would seem to effect the contact with the head, not a huge deal as it doesn't affect functionality. I take it as a sign of machining inaccuracy/tolerances which is to be expected for such a lost cost budget light. Of my 9 Convoy's, I have to say this is the first time I've seen a machining defect of any kind.

Long Term Usage notes:
This light is 2nd only to the Convoy L6 as far as sustained lumens go. Although this has a much greater runtime! High/Turbo is brighter than my L6 by about 900 Lumens. It can sustain 2200 lumens (~40%) seemingly forever with the body heating up to around 134 degrees after 30 mins which is pretty good with no airflow at all, most 18650's are rated up to 75 to 80C (167-176f) so no worries there.

Battery:
For this light, I use my salvaged 18650's as I have lots, but for testing, I have some solar rated 2000mah Westinghouse 18650's rated for "7amps" max. They are nothing special and not very performant at all, probably among the worst I have lol even accounting for the 1300mah salvaged tool cells I have. Nevertheless, with 4 of them, the light easily hits 5200 Lumens on High.

Brightness Perf:

Low: 590
Med: 2101
High: 5350
Max Lumens @30s: 5350
Max Sustained Lumens: 2050 (30mins @ 134f)

Verdict:
One of the best values for sustained Lumens. Doesn't beat the L6 in sustained lumens, but beats it in useful runtime for sure! The soda can form factor makes for the best tail standing experience, and is a PERFECT "power outage" flashlight, as it can light up a room as good as or better than your light fixture for literal hours (I speak from experience during a power outage I had lol). I personally want to get more of these, just for that purpose!

Pros: