I was wondering if any had experience with using the 15k Iwaski and what they thought about them. From Sanjay's data it seems to be pretty impressive. I was wondering if for the extra 20 bucks is this bulb worth it. I looks to have almost double the par, and some more 600nm spikes. I know most people are very happy with the 14k Hamilton and I was planning on buying that bulb until I saw this data.
Here the comparison from Sanjay's page let me know what you think.
Here the comparison from Sanjay's page let me know what you think.