I thought that Wazzup's post in the DE thread was interesting - it explains why the DE lamp wasn't listed in the lineup of Philips' horticultural products. I wonder how effective they can be in limiting sales to their "approved" market? The only way that I've seen that work is by restricting sales to specific license or permit holders.
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About the lamp: Philips still makes them but as from March 2014 they are no lonmger sold in the Hydroponics market, just in the professional greenhouse market. Philips has distanced itself from the cannabis market for legal reasons.
So, indeed the DE lamp from Philips is no longer available on this market (other than old stock). Fortunately we are a Philips business partner and have seen this coming for a long while. Gavita introduced their Gavita Pro 1000W 400V DE lamp already more than a year ago and recently (just a month before the Philips ban) the Gavita Pro Plus 1000W 400V DE lamp. This lamp has the same output as the Philips lamp (2100 umol s-1) and no, it is not a philips OEM lamp , and it is uniquely built for Gavita in Europe.
I am not sure what the other suppliers are going to do, but I know there is an Ushio 1950 umol lamp, there are various Chinese 1850 umol lamps (highly NOT recommended), Osram and GE probably will follow the same policy as Philips does (the GE lamp isn't that good anyway).