I was strictly referring to their form not function.. i.e shoe box black box, Coralcare industrial heatsink, ATI thin panel..
But even the form isn't the same. I guess if you are looking at it as it relates to passive cooling maybe but that is a stretch even. Phillips went the route of incorporating power supply and thermal in a single unit. ATI went the route of power conservation and number of LED's per panel and external power source which allowed a thinner panel.
The weight part threw me because it really isn't applicable. Hobbyist who use them will factor that in. 15 lbs isn't that big of a deal but duly noted.
Bars are all the rage it seems as GHL announced their Mitra Lightbar 3.
Edit: BTW not arguing with you - just yapping and asking for clarity. Thanks for doing so and this is just my thoughts/opinion. Hope your day is well.