Someone above posted shots of it already... it's a magenta hue... unless I am mistaken and that was a different 660 bulb he was referencing
And if you are right and the bulb appears close to white I am all done with UVL. They won't see another penny from me. Touting that as a 660nm bulb is fucking absurd. What a waste of my money.
Look at the magenta-ish lamp (below). Thats the 660nm engineering sample from UVL. I dont see any sort of white at all in the picture or when its running. I really want to see the SPD now because of the output mentioned in the blue and green. I was under the assumption that it was going to be what the Super Actinic is for blue as this 660nm lamp is for red. Sounds thoroughly disappointing from what Ive been reading, but we will see I suppose.
Ive been scouring for lamps that have strong, dedicated output at 650-670nm.. can anyone provide links/graphs of lamps that has this? If not, the best available substitute?
Edit: After thinking about it, magenta containing both blue and green makes a lot of sense. Still disappointed but now on the hunt for an even deeper red if its available
Also, other companies market their lamps in a similar fashion. They will call their lamp a 420 but the strongest peak is at 450-460. Red phosphor is much harder to come by, therefor more costly and rare for a company since these lamps were designed for AQUARIUM/CORAL use which is mostly blue/yellow/green with a touch of red. The sun at these tropic locations emits most wavelengths except deep red, so most companies dont offer a deep red for this reason.) Using T5 for horticulture is a pretty new concept when most commercial growers use MH/HPS. Less labor and less things that can go wrong using one single lamp @ 1000w over 16 lamps @ 1024w lamps plus labor costs and etc of setting it up. Some are shifting to plasma lighting, but still doesnt offer what T5 lighting can do. (I think prof in his most recent appearance said hes putting a plasma in his hydro hut? That will be an interesting journal as well)