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LG make some nice UVA chips. At a nice price too, compared to a Nichia.

Beautifully made and spot on with the placement. Looks like 420nm 400nm 385nm 365nm most probably Semiled? Plenty of nice diodes you can't see. 280nm 310/320nm Nichia or Seoul? That's the problem with UVB it ain't all lovely violets like most newer strips being sold with one single violet range...

Disappointed :wall:

You were spot on bud :hump:

Seen his store products at his page on Alba. Has lots, was looking at his boards for sale. Bare ones with nothing on it,. MOQ had a blond moment. Minimum order Quantity. Seen his store products at his page on Alba. Has lots, was looking at his boards for sale. Bare ones with nothing on it...

UV damage. After reading this post several times. There is very little posted or even one picture of it on here. Apart from the normal sign of leaf burn, has anyone else noticed if you have given them just too much one time any other signs of damage.?

Technically you could get a 286nm and burn the shit out of it till the frequency went up nearer the 293nm barrier you desire.

There is an article in my bedtime reading section about UV. It's all about the Lee factor. No not Bruce.. ko. How they came to the equation 13mw. You will never get a decent 295 diode. That's why most use the more efficient ones at a slightly lower frequency. But according to that report...

45 US dollars for the MOQ10? What version is that?

Very nice indeed. Didn't say a price for the strip or shipping etc. Very interested in them. Even without the X factor. If anything I would add a few LG diodes in there 365nm 385nm *420nm* (*420nm* still looking for a decent one, most very similar) Or the usual deep red and far red etc...

Just watched his latest video on YouTube. Wow a mosquito dick is thicker than that !

UVA 365nm 385nm 405nm LG

Been looking at the Cutter strips. Need 2 strips made up in precise order. Need 6 of them in total. There is an older strip I like, but would prefer the exact same on the newer board's. What is the best way to get this done? Via the Cutter website or PM. .

https://www.led-professional.com/resources-1/articles/transparent-material-considerations-for-uv-optics-in-horticultural-lighting-applications

https://pubs.rsc.org/en/content/articlelanding/2019/tc/c8tc03825b

285nm 5.8v 13mW 200mA 4/6 leds m2 as advised @nachooo

295nm 6v 2mW 20mA

310nm 6v 2mW 20mA 310nm 6v 8mW 20mA CUD1AF4C no data sheet. 310nm 5.5v 9.5mW 200mA 310nm 5.5v 30mW 600mA

After a bit of reading. Found a nice article about uvb leds. 280nm UVB induces secretion of HMGB1 and apoptosis (death of the cells) 310nm UV-B induces the secretion of high-mobility group box-1 (HMGB1) enriching phytochemicals in plants. without inducing apoptosis. In the case of...