Pretty basic build here. Start with a convoy S2, add optics, thermal upgrades, the usual stuff, and pop a 36Kcd pocket rocket out the other end. Simple, practical, effective. For the astute among you, you'll note that the quad Astrolux S41 only pumped 32Kcd with a whole extra emitter. While voltage sag in direct drive is real, mostly it comes down to the S41 coming with garbage optics as stock, and the customer not wanting to pay for the machining and other modification necessary to fit Carclo optics. Thus, the custom S41 project we did dumps more lumens, but is a few Kcd shy of this triple build.