sureshot138
Well-Known Member
Where? I cant find it on there website.
Lumatek Zeus 600 Pro
- Thread starter Moflow
- Start date
hybridway2
Amare Shill
Website is being redone as we speak. I posted several pics & all info. On it. A few times. Whether a mod decided to erase it ad they do to many of my posts w/o notification or reason.
Try Punching in Bar-6 in the search bar.
I've just got 3 of the 600w Pro units, all set up and look unbelievable. My girls go in tomorrow so I will keep you guys posted, first thoughts though, I'm very Impressed
hey ! you really go deep for this! I pleasure that!! thank you! where can I found about cri 80 on which page? because they told me is cri90 !!! fuck this liar company !fuck ! i wont buy this shit!fuck!
end_of_the_tunnel
Well-Known Member
Maybe they changed supplier/leds in the Zeus? Just because particular diode is mentioned in a Chinese test report for CE paperwork does not mean anything. Probably just a placeholder, and what they really use depends on what is available on the market and other considerations.
Better to ask people who actually have the product.
Rocket Soul
Well-Known Member
To go from 80 cri to 90 cri with white LEDs is done by adding red. Some do this with special phosphors on thei white diodes, some by just adding some red diodes. You can have a light which is based on 80cri diodes with extra reds and the resulting light is 90cri.
thank you mate! i see this !but No CRI specified。
yeah ! i know that .because in that MIGRO TEST VIDEO is show cri80. but when a ask the lumatek company they say is over cri90.but seems they don't wanna me to ask about this . i show u what we talk~~~~~
1
Hi Chen,
I hope you are well.
Could you let me know what will be the usage for the fixture?
This type of fixtures tend not to have the CRI mentioned as its usually not a needed measure.
they question me why ask about cri!
2
Hi Chen,
I hope you are well.
Your best option is to have a look at the PPF values and the PPFD maps under the fixture specification sheet as it's a much better measure for grow fixtures.
The CRI tends to be 90+ but with the PPF measures you'll have a much better understanding and the needs suitable for the different the stages of growth.
Kindest Regards,
3
Hi Chen,
I hope you are well.
Our tests gave all more than 90. CRI is in fact not the most specific unit for measure, I strongly advise you in having a look at PPFs and the PPFD maps available in the fixture specification sheet.
cobshopgrow
Well-Known Member
think what chen wanna say is, CRI is no good measure for our purpose.
you can easily trick it with mono colors and it wont tell you anything about the color rendering qualities or whats more important normally the relation to sunlight.
few critic points from wikipedia trying to explain it.
"
you can easily trick it with mono colors and it wont tell you anything about the color rendering qualities or whats more important normally the relation to sunlight.
few critic points from wikipedia trying to explain it.
"
- The CRI cannot be calculated for light sources that do not have a CCT (non-white light).
- Eight samples are not enough since manufacturers can optimize the emission spectra of their lamps to reproduce them faithfully, but otherwise perform poorly. Use more samples (they suggest fifteen for CQS).
- The samples are not saturated enough to pose difficulty for reproduction.
- CRI merely measures the faithfulness of any illuminant to an ideal source with the same CCT, but the ideal source itself may not render colors well if it has an extreme color temperature, due to a lack of energy at either short or long wavelengths (i.e., it may be excessively blue or red). Weight the result by the ratio of the gamut area of the polygon formed by the fifteen samples in CIELAB for 6500 K to the gamut area for the test source. 6500 K is chosen for reference since it has a relatively even distribution of energy over the visible spectrum and hence high gamut area. This normalizes the multiplication factor.
alright ~haha because they say high cri would more like the sun ~.maybe is not important. btw chen is me ...haha
cobshopgrow
Well-Known Member
higher CRI is more like the sun when comparing 2 white leds, just thought chen is refering to a mix of whites and monos and there the cri can be tricked easily,
ad a few monos and youre in the 90s on a spectrometer while its for sure not sun like at all, check the spectrum and work with ppfd i would say.
ad a few monos and youre in the 90s on a spectrometer while its for sure not sun like at all, check the spectrum and work with ppfd i would say.
got that ~~~~
end_of_the_tunnel
Well-Known Member
If you google search the Lumiled part number the CRI is stated in the results.
pro it is not lumiled ...just lumed...
right now !photontek and lumatek have 5 different models about 600w
zeus 600 600pro 600pro 2.9 600pro 2.6
and photontek x600w pro
i just do homework. the zeus 600 and 600pro is difference design. but the 600pro2.9 looks like a return to 600w design.
another question is are the photontek 600pro same as lumatek600wpro ?
again the photontek x600 pro is use DIODES EFFICIENCYOsram Dark Red 660NM 3.3 μmol/J;Lumileds Philips White 2.9 μmol/J
but the sme philips lumileds in lumatek 600w is
DIODES EFFICIENCYOsram Dark Red 660NM 3.3 μmol/J;Lumileds Philips White 2.7 μmol/J
forgive my poor english~
in the begging i was love this company . but right now i got a lot questions in my mind! so confuse
zeus 600 600pro 600pro 2.9 600pro 2.6
and photontek x600w pro
i just do homework. the zeus 600 and 600pro is difference design. but the 600pro2.9 looks like a return to 600w design.
another question is are the photontek 600pro same as lumatek600wpro ?
again the photontek x600 pro is use DIODES EFFICIENCYOsram Dark Red 660NM 3.3 μmol/J;Lumileds Philips White 2.9 μmol/J
but the sme philips lumileds in lumatek 600w is
DIODES EFFICIENCYOsram Dark Red 660NM 3.3 μmol/J;Lumileds Philips White 2.7 μmol/J
forgive my poor english~
in the begging i was love this company . but right now i got a lot questions in my mind! so confuse
welight
Well-Known Member
cri as such is more a metric for the architect when wanting light to match an illuminant base, its role in grow lights as a metric is not fully recognised, that is to say, CRI reflects an attempt to match 100 which is sunlight. Logically a light source that matches the sun would in fact be perfect for a grow light. I argue all day long that light horse power cannot be ignored, but whether you do or don't and then ignore SPECTRUM, do so at your peril. Its a nuanced conversation that your unlikely to have on a china email train
cheers
Mark
cheers
Mark
Got that. Just ask ...but the 600w have 3 different choose.....hard to make a decision
end_of_the_tunnel
Well-Known Member
Perhaps take a step back from all that information and go look for owner feedback. Differences in reported whites efficiency between photontek and original could be due to anything. Or target a particular market. Some buyers in one place might have access to a wider range of bar style lights with higher white µmol, so if you are a selling maybe you have to provide similar to stay in the running.
Step back from the product details, and search out user/owner posts and video.
OK thanks I think will try the 600pro