SPECTRUM PORN

A catch-all category for LED-related questions, content, news, rumors, or whatever. If it doesn’t fit elsewhere, put it here.
Forum rules
Post Reply
User avatar
TEKNIK
LED Wizard
LED Wizard
Reactions:
Posts: 1435
Joined: Fri May 03, 2019 7:53 pm

Final result of the PC blue,
400nm peak and 415 peak
image_2019_07_13T11_21_34_937Z.png
Find me on Instagram led_teknik
Top
grisbi
LED Lover
LED Lover
Reactions:
Posts: 122
Joined: Thu Feb 22, 2018 7:04 pm

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 :cry: @Welight
Top
User avatar
TEKNIK
LED Wizard
LED Wizard
Reactions:
Posts: 1435
Joined: Fri May 03, 2019 7:53 pm

@grisbi You could mix normal near UV 3535 leds together to get a similar effect. They would actually be more efficient than the 3030s.
Find me on Instagram led_teknik
Top
Welight
LED Lover
LED Lover
Reactions:
Posts: 107
Joined: Tue May 07, 2019 8:16 pm
Location: Melbourne
Contact:
Contact Welight

3 Channel BR Boards 5k optisolis, 2000k V3 Nichia and Cree XQE 660nm
Image
Image
just 4 of 100's of possibilities
Cheers
Mark
https://www.cutter.com.au
LED DIY for Growers. Cree, Bridgelux, Lumileds and Nichia specialist. Solskin and Solstrips
Image
Top
unkle_psycho
LED Wizard
LED Wizard
Reactions:
Posts: 1537
Joined: Fri Apr 27, 2018 1:49 pm

Welight wrote: ↑
Wed Jul 17, 2019 5:09 am
 3 Channel BR Boards 5k optisolis, 2000k V3 Nichia and Cree XQE 660nm
Image
Image
just 4 of 100's of possibilities
Cheers
Mark
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.
"Nothing is true, everything is permitted"
Top
User avatar
TEKNIK
LED Wizard
LED Wizard
Reactions:
Posts: 1435
Joined: Fri May 03, 2019 7:53 pm

Screenshot_20191024-204308_Skype.jpg
Just a bit of a share on something I am working on.

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.
Find me on Instagram led_teknik
Top
kisper
LED-Curious
LED-Curious
Reactions:
Posts: 2
Joined: Sun Sep 08, 2019 10:47 pm

that's awesome!!

thanks for sharing, what else can you show us at this time?
Top
PeteR_1
LED Tinker
LED Tinker
Reactions:
Posts: 368
Joined: Sun Jul 05, 2020 1:10 am

SPD and Wavelength Distribution typical of Bridgelux Vesta 2750G, 90 CRI
SPD and Wavelength Distribution typical of Bridgelux Vesta 2750G, 90 CRI
Solar Noon and McCree SPD for comparison to Vesta 2750G SPD
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
Overlay SPD Narrow Band, 3000K, 4000K and HPS

Image

Vesta 2750 measured by @TEKNIK at 500 mA separately 2700K and 5000K
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
Top
Post Reply

Return to “General”