some clarifications on the various PAR 30 & 38 bulbs
First off, in today's market Cree LEDs are better known, but whether you buy Evil's or a spotlight from BoostLED or RapidLED, you're still getting quality LEDs whatever the brand. The difference here in brightness is due to how many LEDs and how many watts they're running at.
The PAR30 (referring to the size of the fixture, not the PAR you measure in the tank) by BoostLED is a quality product (I had one till it fell in the water due to a collapsed light fixture), but the LEDs are not running at a full 3w, mostly because the smaller area means a smaller heatsink. 1 was fine for my 10 gallon tall hex, but just.
The PAR38 by Evil has 5 LEDs running at a full 3w, which is possible due to the larger size and therefore larger heatsink.
The PAR38 product by RapidLED uses 7 LEDs, but once again, due to space, are running closer to 2w each.
People will debate over it all, but it's all going to come down to your own judgement. Each vendor will be able to tell you how many of their product you will need to do the job, and probably all will be adequate. Obviously, Evil's will be brightest, but also costliest by a few $$ (and he gets really geeked on BRIGHT tanks). Your pick.
Just didn't want anymore misinformation spread about LED brands and whatnot.