I took a look at the "1500"
White (6200K), blue (437.5nm), red (660nm), and IR (730nm
Don't like that resulting 'cool' CCT.
lense focusing with a QB is also possibly a bad design. It's only 11x15" so on one axis light has to spead out 6" on each side in order to properly cover a 2x2 area. That par map seems bloated, so i'd want to verify that too.
Just more of the same unless they can prove the claims by publishing the appropriate infor to double check it all... The fact that doesn't exist is a red flag. Mars stopped listing diode count for this reason and their customer service rep even refused to give it to one customer.. they eventually relented and did release the infor. Heaven forbid we have accurate information before buying something...
Would get a diode count. Also need to know the brand of the diodes to verify they have the longevity and efficacy to merit the specifications given. If the numbers stand up, it's a really good light as you don't find high efficacy lights at 100-150 w range from any of themajor brands that i've seen. e.g. if they are sammy lm301, but not powered at .2w per diode, no way it's reaching 3.0 efficacy. The further above .2w per the worse it gets and at a faster pace of decline.
Quantum boards in general are a poorly thought out design. Not taking advantage of the modpower diodes at all. Basically making a single-point light source like an HID bulb, but slightly more spread out. It's fine for the 100-150w range and lower, but quickly is an issue if you need the light to spread out a couple feet or more from your frame. End up with hot spot in middle and weak edges/corners.