Lighting Blurple Light vs New White Light Comparison

Joined
Mar 28, 2021
Messages
26
Reputation
10
Reaction score
30
Points
0
Hi there! I have been making research about new led light technologies and I bought a new one called BavaGreen 240 watt quantum board here are the specifications:
  • High quality 400W HPS replacement
  • Top bin full spectrum Samsung diodes.
  • 240W true wattage draw
  • Meanwell Driver
  • Passive cooled design with large aluminum heat sink.
  • Built in dimmer switch
  • Fully assembled, simply plug and play
  • Flower footprint: ~ 1.5'x3' - 2'x4'
  • Veg footprint: ~ 2'x3' - 2.5'x4'
Manufactured by Bava Green (website information)

LED countLM301H 2700K: 192
LM301H 4000K: 320
Osram 660nm: 24 Osram 730nm: 4 Seoul UV 385nm: 12
PPF588μmol/s
Efficacy (400 nm - 730 nm)2.45 μmol/j
DriverMeanwell HLG-240H-C2100B
301B_mix_uv_board_240x240.jpg
uv_switch_on_240x240.png
uv_switch_off_240x240.png



The charts are great but why does it have so many white leds with only a few red ones? In this post I want to compare this light to an old one that I used.

On the other hand there is this light I borrowed from a friend and used for one grow which performed perfectly. I got a lot of buds. This lights are custom made (made by an electrical engineer who runs a small company) It has a cheaper driver but who cares! It's only 60 watts but full of red diodes rathen white or blue as you can see from the pictures (I had two of them total 120 watts). As far as I know the red diodes are responsible for bud production why the new companies makes quantum boards full of white leds and just a few red ones? The 60 watt unit that I used consists of 30 osram 660 nm red diodes with only 3 blue ones.
I know the fact that the white leds are better than the blue ones because they also carry the green and yellow part of the spectrum but is it enough to put only 24 red diodes alongside 500 white ones? Why do they do this? I noticed some expensive US brands using more red diodes than blues can't remember their names though.
Now I don't know if I converted my system from 120 watt (60 osram 600 nm+6 blue) to 240 watt (500 samsung white leds + 24 Osram 660nm + UV + IR)
or did I just reduce my harvest amount according to the lesser red diode amount with the light change?
This is how I could describe the situation. I don't know maybe im getting something wrong or maybe totally not aware of what are those white leds are responsible for? I am not trying to defend blurple lights but the last setup I used 2 of those lights 60+60 watts included 60 red diodes and the new one I bought is 240 watt but has only 24 red diodes.

I invested on this new light because I wanted to double my harvest. Now it looks different I only doubled my watt consumption and have much less red diodes.

the first 2 pictures belongs to the 60 watt unit that I used and got great results
the last one is bavagreen 240 watt that worries me. In this article it says the ratio of red to blue should be 5:1. Did you see any new quantum boards using this kind of ratio? https://growlightinfo.com/what-color-light-do-plants-grow-best-in/
 

Attachments

  • IMG_20210508_143644.jpg
    IMG_20210508_143644.jpg
    2 MB · Views: 47
  • IMG_20210508_143706.jpg
    IMG_20210508_143706.jpg
    3.1 MB · Views: 45
  • IMG_20210508_143836.jpg
    IMG_20210508_143836.jpg
    3.2 MB · Views: 42
Last edited:
There don't need to be many red diodes if they are quality. About 15w of 730nm covers a 4x4 while 30w of 660nm covers a 4x4 so there don't need to be as many. Those reds are narrow while the whites are wide covering 400-630ish on their own. Having the UV on your light has lowered efficiency because below 410nm or so the UV is less and less efficient.

The best spectrum I've seen is from GrowlightAustralia and their 420 Highlight boards. 390-800nm with pumps in blue and red, they could really be used full cycle they are so good with a efficacy of 3.0umols/j

 
I don't know how many watts a single 660 nm osram diode spends but I think I have enough of them according to what you say. my area is smaller though it's 2.5x2.5. I checked growlight australia it looks great they have a higher red to blue ratio. why they just don't do like this all of them? Is the red diode expensive? whites are so cheap that they can't stand using so many of them?
 
I don't know how many watts a single 660 nm osram diode spends but I think I have enough of them according to what you say. my area is smaller though it's 2.5x2.5. I checked growlight australia it looks great they have a higher red to blue ratio. why they just don't do like this all of them? Is the red diode expensive? whites are so cheap that they can't stand using so many of them?

That's an enthusiast/commercial light that uses top bin diodes. The reds used are developed by a lighting manufacturer named LEDTeknik that are some of the most efficient quality on the market.

I'd stick to quality manufacturers like HLG whom use top bin diodes opposed to anything from China.
 
Back
Top