Both of the above highlight something, the fact that you guys can get affordable led's off the shelf in various stores. You go into a DIY store here and you'll pay the best part of $20 for a 100w equivalent led replacement bulb and these "grow lights" are only available in "specialist" stores and the price matches that, hitting at least double the cost paid in Walmart. It's why I source things direct from China, the "local" prices here in Benelux are so ball-crushingly high it would end up being as cheap buying genuine QB's and so on.
It's not just Belgium, and nobody can explain why what is essentially the same thing costs so much more over on this side of the pond than in the USA, and as soon as you go over 9w the price rockets to the point I can buy 4 14-15w led replacements direct from China for the price of one such lamp in my local DIY stores, and that's before we think of how limited the choice is when you want something other than 6500K.
And then they wonder why AliBaba Group is getting so many orders for things they can justify opening up an EU warehouse in, once the willy waving between Belgium and Holland is over to decide "where", Benelux...