Philips LED Production Modules, are these already outdated?

I've seen videos online showing that these work twice as efficient than T5HO, and produce better quality, denser heavier vegetative growth.

Looking at the par numbers in the pdf though, they seem very low (around 50ppfd?)

Can anyone help me figure out how these would compare to say a newer generation white strip LED or an array of cobs?

@robincnn has a good post about strip LEDs for his ikea veg box and says he had 200ppfd.... Please help me understand, I thought these Philips strips were supposed to be good.

This fixture has around 96 LEDs, and contrary to the pdf consumes 35w.

I'm looking to build a 4'x1' veg space.

http://www.lighting.philips.com/pwc_li/main/shared/assets/downloads/pdf/horticulture/leaflets/cl-g-production_module-en.pdf

It's not PPFD (umol/s/m2), but PPF (umol/s).

50umol/s from 23W is 2.17umol/s/W. That's pretty good. Regular T5 will give you 1.24umol/s/W at best.

To get 200 PPFD over a 4'x1' area (0,37m2) you'd need a PPF of: 200umol/s/m2 * 0,37m2=74umol/s. Keep some losses in mind so you'd need slightly more.

Actually 23w is the new gen light, mine are 35w so that's 1.4umols/s/W

These strips are 140$ Cdn, if I buy 6 I can get a manufacturer case and be garunteed to get the new generation, 840$.

There is a greenhouse selling 80 of the old gens for 100$ each.

In comparison the 5000k cxb3590 72v is

2.52 umol/s/w at 700ma = 49w
1.93 umol/s/w at 1400ma = 103w

If I used say 4 of those new gen Philips bars that would be comparable in wattage to 2 cxb3590 but with better spread.

If I used 1cxb3590 for each foot squared in a four cob line, I think that would output as much light as 8 of the Philips bars.

Seems to me that the CXB3590's would be a lot cheaper "per umol" then. Which is what counts in the end right?

On the other hand, two of those light bars would give you more than 200umol/s/m2 (ie 74umol/s) in that space. One CXB3590 would also do that, but you'd get a very bad spread.

4 of those COBs over that area would be too much for flowering even.