Re: SPECTRUM PORN
Posted: Sun Jul 14, 2019 1:01 am
Final result of the PC blue,
400nm peak and 415 peak
400nm peak and 415 peak
@WelightPage 3 of 3
Re: SPECTRUM PORN
Posted: Tue Jul 16, 2019 12:02 am
amazing @TEKNIK !!! all the blue and a litle bit of cyan as well, im so pist off , the new cutter solstrip 2 channel are on 3535 led model and your pc blue are 3030 model @Welight
@WelightRe: SPECTRUM PORN
Posted: Tue Jul 16, 2019 12:19 am
@grisbi You could mix normal near UV 3535 leds together to get a similar effect. They would actually be more efficient than the 3030s.
Re: SPECTRUM PORN
Posted: Wed Jul 17, 2019 5:09 am
3 Channel BR Boards 5k optisolis, 2000k V3 Nichia and Cree XQE 660nm
just 4 of 100's of possibilities
Cheers
Mark
just 4 of 100's of possibilities
Cheers
Mark
Re: SPECTRUM PORN
Posted: Thu Jul 18, 2019 10:28 pm
How hard can these be driven with heat sinks? I can't believe google can't find me a single build with these strips... Probably the coolest single product out there, and seems cheap as hell.
Re: SPECTRUM PORN
Posted: Thu Oct 24, 2019 9:53 am
I'm having a prototype made of a 4w led with multiple mono leds inside it.
I'm not sure how it will work but that's what prototypes are all about, I need to do some tests first
Hopefully it will improve someone's life somewhere in the world if it proves to be a good led chip.
Re: SPECTRUM PORN
Posted: Mon Oct 28, 2019 2:47 pm
that's awesome!!
thanks for sharing, what else can you show us at this time?
thanks for sharing, what else can you show us at this time?
Re: SPECTRUM PORN
Posted: Sat Jul 18, 2020 7:49 pm
- SPD and Wavelength Distribution typical of Bridgelux Vesta 2750G, 90 CRI
- Solar Noon and McCree SPD for comparison to Vesta 2750G SPD
Comparing the SPD and Wavelength Distribution of Grow Lights can be (is) similar to comparing Fertilizer NPK ratios. For example a 24-8-16 (NPK Percentage) can be used instead of a 20-20-20 and may be more appropriate because the plants absorb and use those nutrients in at least a 3-1-2 ratio (up to ~ 7-1-5 ratio). IMO Similar "ratios" for B-G-R-Fr (Blue-Green-Red-FarRed) for LED Grow Lights can be extrapolated from the Wavelength Distribution of more popular and successful Commercial Products, e.g., 2700K 90 CRI LED (PC Converted) has better Spectrum and wavelength distribution than HPS.
- Overlay SPD Narrow Band, 3000K, 4000K and HPS
- Vesta 2750 measured by @TEKNIK at 500 mA separately 2700K and 5000K
Activegrow SunWhite Graphic... https://www.activegrowled.com/wp-conten ... -Sheet.pdf
Solar-McCree SPD... https://forevergreenindoors.com/blogs/n ... -of-growth
PC LED vs HPS... https://www.biorxiv.org/content/10.1101 ... 1.full.pdf
Vesta Specs... viewtopic.php?f=32&t=4277&hilit=bridgel ... 9&start=50