I used that too, unfortunately the 320H-2800AB was not in stock at the time, so I took a chance since I am not on a time crunch. I figure I might as well support US companies as much as possible. TME in Europe has one in stock. I like the idea of the tunability of the AB series, so why not give it a shot.
The part in blue is where I'm confused. I don't see how 660 nanometers is a shorter wavelength than 450 nm. A shorter wavelength has a higher frequency. So if I have a shorter wavelength/higher frequency that 450nm, wouldn't I be moving away from the red spectrum, and towards the uv spectrum? Plus I thought shorter wavelengths had more energy than longer ones.
You are correct..... Writing this stuff a little tired. None the less the red photon is lighter in energy of course. I guess you get the overall drift..... Lol
I just snagged a couple 240H-C1750AB drivers from TME. They came really quickly.
LM301B & LM301H are the same exact diode.
Right I understand that technically they are the same diode, just wondering what actually went on there. Not because it matters, but just because I was wondering. Really the cre/ssl was more interesting to me than b/h. Again, doesn't matter, just wondering ^^
HLG's website description of the boards changed (LM301B to LM301H) earlier this year.
I thought I remembered Mark @welight staying that the Osram Squares were more efficient and overall better than the XPG-3's?
if I did that would have tasted salty. Currently in commercially available qty, XPG-3 G bin is the best Deep Red Available. I know the pr machine at osram has touted a better chip, but I dont know of anyone who has the top bin and using it(in volume), but happy to be instructed otherwise
OOOOOOOOOWEEEEEEEE!!!!Mid / late Gotham Limited ( Trainwreck x 79 Xmas bud ) and solo KKP .
Solo KKP got a top dress ( final ) for the next couple weeks of maturity. She’s fading but want to make sure medium is still charged enough for that fading . Adding kelp at watering with a little silica ( added last week ) to temper the Cali heat we been having , which makes them thirsty in 2 days of last watering.
That one is under the QB 304V1boards ( 3500k ) / COB . Those boards will probably be finally
swapped for diablos and will be probably sold. I need a tent , this one has made for about 7 years and is getting some pinholes. So after this plant , tent comes down , tossed and shopped for a replacement.... that’s why I might just “ upgrade “ during that time.
Gotham’s are pretty much neck and neck and will get another top dress soon too.
Those are under QB96 only .... did not use UV on them ... yet. Thinking of flipping timer on those for Monday ( got a new timer ) to get set up for 4 x 3hr ( power on ) during 12/12 for 15 minutes only. Pure UV bulbs can be a bit much running them any longer.
I installed a 10000k finisher to work with the UV bulb instead of rocking a douBle barrel of Pure UV which would be overkill .
View attachment 4561724View attachment 4561729
Gotham Limited - 3 gallon plastic
FFOF / EB Stone - EWC /KELP / Great White / MYCOCHUM
Top Dress fed ph 6.7
View attachment 4561725View attachment 4561727
KKP - 1 gallon grow bag
FFOF / EB Stone - Great White / EWC / Kelp / Silica amendments
Tap 6.5
View attachment 4561726
Peace
Damn, 2 gs of the stuff per board Huh? So what are your reading with just bare board to heatsink?
More like 9-10gs, lol. I got the 37g (10ml) tube which was like $80 shipped from PPCS. I don't remember the heat sink exactly, but I remember that the board was just over 58C, so maybe a 7-8C difference? I didn't remember to write it down (I'm a scientist!). The heat sink definitely feels a little hotter, which is a good thing. I'm gonna take your advice and get a small fan on it. I also have a fan on the driver, and it feels lukewarm, so that's probably a good idea for efficiency too.
You shoulda just checkerboard patterned little pea sized drip of it on the back of the board and pressed it on to the heatsink, make one good circular motion as you press down then pull it up and see how it looked
Touching the thermal paste ruins the thermal conductivity of it. #1 thing to never do is touch the cpu or heatsink after cleaning it before putting on thermal paste, and obviously never touch the paste either. Same thing would apply to this board and heatsink. The oil in/on your hands totally messes with thermal transfer capabilities.
