Positivity
Well-Known Member
Being its been said plants don't care about photons (or light spread) from this fellow grower..
It must be the secret sauce..
It must be the secret sauce..
New School Lights Old School Strains.
- Thread starter TaNg PeNg
- Start date
ReeferDance
Well-Known Member
Looks a lot like the spectrum BML Horticulture is using. Mostly blurple, little bit of white.
Really cool to see what those little panels are capable of!
Positivity
Well-Known Member
It is a cool looking light...probably does grow well for what it is. I could see someone buying it just on cool factor alone...not always about yield..
How much is it? 75w?
How much is it? 75w?
TaNg PeNg
Well-Known Member
There not to bad bro to be honest.
No bro there only 220-240v but there is a 120v in the pipeline.
Lol thanks bro.
I'm probably lining myself up here lol but the last grow I got 390g dry from 2 Autos (will drop the videos in after posting this) that was using 75w for the first 37 days then 150w for the rest of the grow,it was a very long grow though with the Auto Euforia taking 100 days and with the lights on 20hrs a day a total of 2000 light hrs,more than most photo grows. Also because the Blackberry Kush finish much earlier than the Euforia I was able to angle both lights onto the Euforia to boost her yield
Wasn't said in this thread bro quite the opposite in fact lol I said plants don't care about how may watts the lights use they just care about the photons they produce.
It's defiantly the whitest spectrum I've grown with bro,I love how green the plants look under it.Looks a lot like the spectrum BML Horticulture is using. Mostly blurple, little bit of white.
Really cool to see what those little panels are capable of!
Positivity
Well-Known Member
Well...thats how i translated it. 75w of rebel photons ain't much. Not compared to a full spectrum cob putting out 160+ l/w...
Just how I read it...no worries.
TaNg PeNg
Well-Known Member
Do you know the output of these lights bro? Ain't got a clue myself but my plants are happy so so am I.
DonPetro
Well-Known Member
Looking good there brother! Great yields!A few Macro shots of the maturing buds.
Blue Velvet 1.
Blue Velvet 2.
Night Queen. Outstanding resin production on this lady.
TaNg PeNg
Well-Known Member
Cheers guys. I do have some slight Variegation on the smaller Blue Velvet but that can't be helped.Lovely looking plants and pics, nice to see everything neat and tidy with all the leaves healthy, most peoples gardens even my own aggravates my ocd when its messy
peace
PSUAGRO.
Well-Known Member
Well the majority of the chips in the HS1 are philips rebel deep red, which has the highest umol/j on the market between 400-700nm(credit alesh). BUT that diffuser must be robbing at least 15% of the light output. he did use allot more electricity than us 12/12 guys for that record run........idk, kinda a toss up.
The I-LIGHT is pretty though
this photo round should give us a realistic turn out of the fixtures capability IMO...............we also tend to forget that the GROWER is a major factor.
Positivity
Well-Known Member
True..monos have the highest umol from what i understand. I was more looking at what I thought was the bigger picture. The massive yields and size of the plants were more due to autos and hours of light than spectrum or chip efficiency. Just seemed a little misleading giving the chips so much credit....Well the majority of the chips in the HS1 are philips rebel deep red, which has the highest umol/j on the market between 400-700nm(credit alesh). BUT that diffuser must be robbing at least 15% of the light output. he did use allot more electricity than us 12/12 guys for that record run........idk, kinda a toss up.
The I-LIGHT is pretty though
this photo round should give us a realistic turn out of the fixtures capability IMO...............we also tend to forget that the GROWER is a major factor.
Thats my only point...
Nice light, nice grow, good grower....but I want to see what it can do with regular photoperiod plants.
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TaNg PeNg
Well-Known Member
The diffuser came up for discussion on the Auto site I'm on,they have a QnA thread for GN where a rep comes in. Can PM you a link if you fancy a read there is some good info in there....I've just copied this bit as the Holographic Diffuser and secondary optics are discussed.....Well the majority of the chips in the HS1 are philips rebel deep red, which has the highest umol/j on the market between 400-700nm(credit alesh). BUT that diffuser must be robbing at least 15% of the light output. he did use allot more electricity than us 12/12 guys for that record run........idk, kinda a toss up.
The I-LIGHT is pretty though
this photo round should give us a realistic turn out of the fixtures capability IMO...............we also tend to forget that the GROWER is a major factor.
The holographic diffuser is used to create even distribution of spectra and intensity across the target coverage area from a single point or multiple points of illumination. The problem with led grow lights that only use secondary optics is there relative intensity distribution in the beam angle. Take a look at this example
See how a large portion of the relative intensity lies at around 20° degrees with a peak at 0°. These are light intensity hotspots and we have found that not only do these account for a large volume of wasted reflected light but these hots spots also cause light-induced molecular damage and other consequential plant health issues.
This can be seen with most cluster/modular LED grow lights like our previous series. Depending on the power density and distance to the canopy, they generally tend to have a very high central intensity (which also has hotspots with in that central intensity) and a secondary intensity. Though that central intensity can produce great PAR readings when measured at a single location this doesn't tell us the quality and quantity of growth we can see spanning the full coverage area or the damage that these hotspots can cause to plants.
The secondary optics we use are from LEDIL- a producer of high efficiency polymer optics. The beam angle of the HS1 optics is 20-24 degrees (depending on whether the LED is the rebel or rebel es), if applied like you suggested without the diffuser this will cause significant damage to any plants underneath and a tiny coverage area that is just slightly larger than the area of the module without a holographic diffuser (as seen in the previous reply to this post). Here is the relative distribution on the narrow optics we use.
The use of a narrow beam angle optic in comparison with a an optic with a wider beam angle has 2 main benefits. Firstly the optics transmission efficiency is higher in the narrower angle (73%-wider angle, 88.3% narrow angle) and secondly you can use any holographic diffuser in conjunction that has a wider beam angle than the secondary optics. This means we can not only produce a homogenous distribution of intensity across the beam angle but we can also interchange the beam angle using our magnetically removable diffusers. That said your right in thinking using a tertiary optic like the holographic diffuser does decrease the efficiency of light delivered to the plants compared to just using primary optics. Though by using a more efficient primary optic with a narrower beam angle we make up much of the difference but now the light is also distributed homogeneously across the beam angle. Compared to traditional diffusors (see the previous GN post) the holographic diffuser's micro-structure greatly reduces reflection making ordinary polycarbonate transmit light as upto a 92% efficiency compared to the 70%+- traditional diffuses.
The only other "$$$$ LED grow lights" that can offer similar uniformity to the HS1 are the illumitex models. If you examine their LED package you will find a similar optical system for removing hotspots. In the illumitex array the semiconductors are not encapsulated by a silicone dome but by the optical system and their diffuser is a traditional (injection molded) type which is part of the primary optic. The package they produce has similarities between the HS1 optical system and the optical system in the modular series. Though hotspots are removed/reduced from the distribution of a single LED array, the arrays also need to be spaced out accordingly to prevent hotspots forming from two arrays in conjunction. Our optical system doesn't need this spacing as it performs like a single illumitex array but with a larger power density, coverage and a more homogeneous spread of light.
Here is a picture of a Holographic diffuser (on the left) and a traditional diffuser (on the right)
The micro-structured surface of the diffuser needs to be be examined under an electron microscope, here are some examples.
I have one of these with the standard defuser and get more stretching using this than a Hans panel of the same wattage.This is due to having the standard defuser,I bought the hs1 on the understanding that i would get a 90x60 in april.I waited and this did not happen. I have spoken to grow northern when i realised they were offering choices of defusers to new buyers.They have eventually stuck to the promise they made and are sending me the 90x60 defuser at cost.It took some back and forth and pointing out i have a diary elsewhere before they agreed to send it though..
At £400 per unit i am not that impressed got about .9gm per w although the defuser gave a rubbish spread.
At £400 per unit i am not that impressed got about .9gm per w although the defuser gave a rubbish spread.
Randomblame
Well-Known Member
Hey Tang!
I mean I've read another report a few years back using 2 old Apollo's(6 discs) with 2 changed-in Rebels discs in each unit and a DP Auto Xtreme and incredible results.
It seems you have really a green thumb, Lol! Hard to believe what you achieve with 150 watts!
Are you sure they only get 12h light a day?
I mean I've read another report a few years back using 2 old Apollo's(6 discs) with 2 changed-in Rebels discs in each unit and a DP Auto Xtreme and incredible results.
It seems you have really a green thumb, Lol! Hard to believe what you achieve with 150 watts!
Are you sure they only get 12h light a day?
lilroach
Well-Known Member
I'm chiming in without reading the whole thread so if I'm covering something that's already been discussed....shame on me.
I watched the video of the time-lapse growth of what appears to be one or two plants. First off...beautiful plants...you should be proud.
And that's the rub for me....you had what.....three LED lights over 1-2 plants. I have no clue what you paid for those, but with that limited number of plants it'd take a long time to get a good return on investment.
I truly believe that LED's are going the be the future go-to lights for growing....but the price has to come down to something reasonable. I reflect back to the early '70's when I bought my first "hand-held" calculator for $78. It did addition, subtraction, multiplication, and division....and square roots if I remember right. It took 6 AA batteries and weighed about 1/2 a lb. Now a $20 calculator can do entire scientific calculations and is the size of a credit card.
That's how I see LED's. A 1000 watt (equivalent) fixture and bulb goes for what....$1,500 and covers a 5x5 area.....maybe? While my set-up is old school HID's I don't have more than $1K invested in covering 16 plants in an 8x8' area....and grow pretty nice plants myself. Yeah.....they spin my electric meter pretty good and I'm dealing with heat challenges, but my flower room's output per dollar invested still greatly exceeds LED's no matter how you do the math.
I watched the video of the time-lapse growth of what appears to be one or two plants. First off...beautiful plants...you should be proud.
And that's the rub for me....you had what.....three LED lights over 1-2 plants. I have no clue what you paid for those, but with that limited number of plants it'd take a long time to get a good return on investment.
I truly believe that LED's are going the be the future go-to lights for growing....but the price has to come down to something reasonable. I reflect back to the early '70's when I bought my first "hand-held" calculator for $78. It did addition, subtraction, multiplication, and division....and square roots if I remember right. It took 6 AA batteries and weighed about 1/2 a lb. Now a $20 calculator can do entire scientific calculations and is the size of a credit card.
That's how I see LED's. A 1000 watt (equivalent) fixture and bulb goes for what....$1,500 and covers a 5x5 area.....maybe? While my set-up is old school HID's I don't have more than $1K invested in covering 16 plants in an 8x8' area....and grow pretty nice plants myself. Yeah.....they spin my electric meter pretty good and I'm dealing with heat challenges, but my flower room's output per dollar invested still greatly exceeds LED's no matter how you do the math.