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Far red and/or UV-b monos seem to be the only ones used alongside white COBs. Far red because some people believe/believed that it will further aid the Emerson effect because they think/thought that 3500K Crees or 3000K Crees don't have enough far red themselves, but I seriously doubt that it's...

I used to think Vipar was just the same as Mars. Seems like the cooling of Vipar panels is way worse resulting in diodes cracking (even sooner than Mars)

Have thought about growing Tobacco but curing is such a bother with it.

And then sometimes you have people pulling somewhat impressive numbers with Mars Hydro only to later learn that he/she added a lot of extra CFL and the gr/watt is actually close to 0.5-0.55

"Efficiency is 0.89 umol/s/watt" -Amazon link DE Gavitas are 2 umol/s/watt for comparison

They're probably actually 150 watt panels labeled as 300. 4 150 watt panels + that Vipar is around 35 watts per square foot, the little UFO will add a few extra. Panels are most certainly rather inefficient so will be tight, they'll most likely flower the plants but don't expect a record yield.

Your Amazon claims. "Efficiency is 0.89 umol/s/watt." That means HPS is more efficient than that. Double ended Gavita has an efficiency of 2 umol s-1 per Watt, so more than twice as efficient as your CFL. Your products are just glorified CFL, maybe better than standard CFL bulbs but still CFL...

Spectrum of a Phillips CFL bulb 2750K

DE HPS is close to 2 times as efficient as CFL. LED depends, the CXB/Very cobs are much more efficient and have the advantage of a 110-120 degree light angle instead of almost every direction requiring a reflector.

What was the total wattage of the supplemental CFL may I ask?

50 seems right if they have reflectors. Assuming 0.55 gr per watt.

Imagine somebody tries to infiltrate your house and you just shine it in their face.

The only thing amazing about Mars is just how loud their fans are. Like a turbine jet without the power.

This why CFL need a good reflector. The LED shines in a 120 degree cone while the CFL radiates light in every direction. So you get these very low LUX readings. Results would be closer with a reflector, LED would still win out though.

A big growhouse where they cultivate flowers or fruits or something. Having a 2400W chip also brings a lot of attention towards them and is basically free publicity

Epiled is generic shitty Chinese light with zero quality control. Yes on Cree or Bridgelux. This man did a comparison of his CXA3070 (CXB is upgraded CXA) against generic Chinese "ebay" epileds. https://www.orchidsforum.com/threads/amazing-cree-cxa3070-led.13309/ His CXA3070 was twice as...

"epileds" No, it's not a good idea

Of course CFL can't compete any more. GE brightsticks already outdo CFLs both in efficiency and pretty much equal in cost. Especially when you have a lucky sale. Remove the "bulb" it's a great 10 watt light with the little SMDs shining directly downwards. 3-pack (3x10W) is 10 dollar homedepot.

CXB is upgraded CXA, higher bins Bridgelux Vero are the budget cobs so to say.

Those holes should barely impact performance, aesthetics are important (for some)