Is it quartz like the Phillips bulb is or borosilicate like flourescents.
Solis tek as been known to lie before. That's why their cob light failed and was pulled.
Their hps bulbs, the different wattages have the same spectrum charts on the bulb boxes but they have a different cri. So how is the spectrum the same and the cri different. If that's even the actual spectrum they produce.
Not sure, I only own one. The quality of glass was a talking point though. I'm with solis totally but I always give them all a spin, I'll be having a ushio 315 soon.
My problem isn't really lamps, they're all good, it's finding a decent ballast other than genuine philips. I've ordered whatever cycloptics is sourcing now, it certainly better not be a phantom rebranded , they used welthink awhile back , I'd try one of those but I think welthink has become sunplix (which I'm trying to source a ballast from too, it's got features the other ballasts don't have and also boasts a circuit that prolongs lamp life to 50k hours but you know how advertising goes.