I haven't owned a Britelyt, but have owned a Petromax, Wentzel and Hipolito. And like 302w, I've owned close to 100 lanterns and stoves, mostly Coleman, but also many of the oddball stuff.
As mentioned by 302w, watch the air gap setting on the mixing tube.
Also, in my experience, the generator tips can become loose, and the ceramic burner can also become loose to the point of actually falling off causing a broken mantle and fireball. I think there is some type of vibration caused by the running lantern that over time causes things to come undone. I put a small dab of muffler mend paste on those parts threads and it kept them in place, but it will make removal of said parts a bit more difficult to down the road if they need replaced. The burner is ceramic so treat it with care as they can shatter if dropped. Small price to pay in my opinion for heading off a potential problem.
When pumping it up with the onboard pump it will take quite a few pumps to get the gauge to move, like a 100 or so, so don't be alarmed if nothing happens when you start pumping.
Last tip, when you are done burning the lantern and release the pressure with the bleed screw, turn the valve to the 12 o-clock position and leave the bleed screw open if you plan on keeping fuel in the fount. Small changes in ambient temperature can actually pressurize the fount enough that fuel will get by the foot valve and climb the generator and eventually run down and puddle under the lantern. Yes, it has happened to me.
I just got in the habit of draining the fuel just to be on the safe side.
I look forward for your action report and wish someone told me all this shit before I had to learn the hard way.