I'm trying to buy a set of studio strobes, but the ones available to me have a rather small flash tube, being 400W (FotoBestWay) and 300W (Godox) units.
But in the past I have worked with 200W units that have a physically bigger flash tube. (Calumet Genesis II, Bowens Gemini) (I'm talking about the doughnut shaped, gas filled tube that actually produces the flash pulse, not the modeling light).
My concerns are these:
Is the size of the tube related to the power it can deliver?
Is a smaller tube being requested to deliver more power prone to have a shorter life?
Is a smaller tube more prone to overheating?
Should I allow extra time between shots when using full power (more time than recycle time) to allow the tube to cool down?
Finally I bought a couple of 600w Fomex heads. The flash tube is not as small as de one in Godox or FotoBestway, but still not as big as the Bowens 500w model I saw in the very same store. So my concerns are still present.