I would put my money on inda-gro in a head to head equal watt veg competition against any led.
Maybe
@chazbolin can fill us in on what happened with that live stream grow light competition thing?
What started out in a FB group called Just4Growers was a suggestion that any of the 4K members of that group could offer to conduct a trial in where the same genetics and conditions within 4 x 4 tents would allow any lighting technology up to 1000 watts could compete under a live stream format. There were several gardeners that offered up their services so a vote was conducted and one of the gardeners who offered to perform the trials won the popular vote. With that tents were sent to him and 3 of the 5 mfg's who agreed to send the lights did so. Some of the mfg's decided to argue the fairness of the trial to the point they dropped out. One of the statements I heard was 'there is no point in being second'.
The J4G site did not allow any talk of cannabis so a new FB group was launched called International Artificial Grow Light Association. The arguing over bias and standards that could not be evenly applied between different technologies created a situation where the grower got tired of the bickering and backed out. So while the trial never went on it was interesting to see what lengths certain mfg's would go to to diminish the importance of what would have been a by the people for the people challenge. The gardener was respected, voted in and willing to conduct the trial in what would have been a widely monitored trial of competing technologies.
Ultimately what would have been of interest to everyone would have been the quality of finish differences, weight/watt and weight/area. It would have given those 300 watt LED mfg's who claim they can equal or surpass the crop results of a 1000 watt HPS a forum to prove up their claims. Any mfg who decided to contribute to the trial would have been able to make real time comments if their light was not being used the way they way it had been designed to function. IG did initiate the trials but had absolutely zero influence on who the gardener would be or where the trials would take place. Gavita initially agreed to participate but decided against it when they could not get their particular demands met, one of which was that each mfg would have to meet is that their lights deliver a 1000 uMol/m-sq 1-s average illumination level. They also took great exception to the fact that IG submitted hybrid technologies with their submission of induction/LED.
So it's left to mfg's to conduct their own tests and try to keep them varied for the multiple ways they may be used then publish their results using regular updates so the plants can speak for themselves. Which of course what it is ultimately all about anyway.