I’ve never been able to figure out the diode manufacturer let alone bin. That’s why I moved on to designing a custom strip so I could know everything that went into it, diode, circuit design, PCB form, format and thermal capacity. That said I like the TCI strips for my clone and seedling tables, they were a nice upgrade from my old T8s.
The 3000K strips will double your lumens and add nice spectrum for flowering. You don’t say what your COBs’ CCT is, ultimately your space will have a blend of the two spectrums, how well blended will depend on the design of your array. Strips give you a lot of options to spread light into corners and weak spots around a COB array.
As far as coverage, your dimensions reflect a 0.9m x 1.7m canopy area? In American, that’s like 15 s.f., which gives you around 13 watts per s.f. Sounds way too low for veg, let alone bloom. If you mean a canopy of .9m x .9m, or about 9 s.f., it’s a veg-acceptable 22 watts per s.f., but still lower than the 30-40 watts/s.f. that I’d recommend as a rule of thumb. (LED growgeeks frown upon “watts per s.f.” talk but with white LEDs it is a useful shorthand. Ultimately you’ll want to understand PAR and PFFD, which measures plant-useful spectrum intensity.)
I get about 26,000 lux at 10 inches off the 3-strip light shown above, using the TCI 4000K strips. That’s a nice vegging intensity, over about a 5 s.f. area. I would want more like 30,000 lux for a bloom area. Download a lux meter app for your phone, or buy a $10 lux meter on Ebay, yes they aren’t super accurate or capture the non-visible spectrum but for white LED they are useful as a relative metric.
Frankly, depending on your canopy size I might use the TCI strips either as a second clone/mother/early veg light array, and add some more Crees, or look into the more powerful strips available from Samsung and Bridgelux. SolStrips have the top bin Samsung LM561C chips everyone wants, at twice the power of the TCI strips. I have 3000K, 4000K, and 5000K in stock, with 2700K and 3500K in production now. PM me if you want more info. -b420