Recent content by chubba hubba

Hi Sanjay, I hope you are well! Many of the SPDs I have can not be scaled (different wavelengths) and they were created using different ballasts, reflectors and distances I assume. Making my own SPDs seems wise. I think I will test lamps with a few different refelctor/ballast (digital and...

Hi Sanjay, Sorry I have not responeded sooner, I just noticed your post. Yes and no; some do and some do not. Most SPDs are scaled with respect to different wavelengths, with the exception of a few SPDs. By the wording of your question I assume I will not be able to compare the different...

Ooops! Typo, I should have said grid box number, not "pixel number", in all instances. Sorry.

I can't believe that! Or I at least hope not, they are too good to miss! I have learned SO much from your work, at least I for one am very grateful. Nowhere else can one find the depth of information you presented in a very easily understandable manner, even for this laymen :birthday: I do...

Hi Sanjay, et al, I have read your 'Facts of Light' series and I must say it is excellent! But I do have a few questions for you or anyone who can help me: I am comparing different 'horticultural lamps' via the system wattage (lamp + ballast) and the manufactures SPD curve. But I worry I...