The Lumia 5.2 looks to be a 5-channel chip that requires 18v on several channels. This limits your possibilities somewhat.
Your main choices are to run each channel in series with a high voltage power supply (probably multiple), or use a lower voltage power supply and Meanwell LDD-H drivers. I tried the former with 3 COB LEDs in series and found very quickly that the chips were junk, not to mention the fact that high voltage DC near to water is inherently dangerous. Possible, but not recommended. Ultimately, I had to go to the next method anyway. I have a pile of left over high voltage Meanwell power supplies now taking up space in my closet.
If you use 5-up boards to control your Lumias, you can use 48v power supplies and run 2 chips on each driver board (each board will use up to 5.1a). This seems expensive (30 x LDD-H, 6x 5-up boards) but if you do it this way, I think you will be happier long run. Buy the 5-up boards from one of the usual LED vendors and the LDDs direct from Mouser or whoever has the best pricing (it will be $2-3 less per LDD than the LED vendors).
Having said that, there are other options to the Lumia 5.2 chip out there. I ended up trashing the "DreamChips" I bought (2/3 were defective) and bought BlueAcro Acrostar 20k blue pro LEDs and am delighted with them. They are not inexpensive, but use Philips Luxeon Z LEDs which give quite a bang for the buck lumens/watt of power. If you go this route, you can put 3 chips on each driver connected in series so you will only need 4 of the 4-up boards which will save you some cash over the Lumias. You need 3.7a (call it 4a) for each board and 16a for the total system. You will probably need multiple power supplies for this (probably 2 x 600W). I like the higher efficiency MeanWell HEP series power supplies but they are costly. Get yourself a Bluefish mini or equivalent controller, a big Makers heat sink and you are in business. This is still going to be a costly system, but much less than a commercial one of similar output.
My last recommendation would be to consider using about half this many LEDs and replace those you removed with T5 retrofits. The more even illumination from the T5s will nicely complement the LEDs. I have my LEDs on a Makers heat sink flanked by 2 x 80 w T5 retrofits on each side on my 150g.
