Inhaltsübersicht
In September we launched our first LED measuring day in Bovenden (Germany, close to Göttingen). We met with Bloomtech's Thomas to run the first part of our measurement series. We set up a tent to provide a measurement area of 1m2 and tested various LED lights by different manufacturers.
The measuring marathon ended up being a great day of work and fun. Thomas provided bratwurst and beer (thanks again for that!) and we talked shop about everything LED.
The setup is comparatively simple. We provided 1m2 of measuring space and installed 81 metering points of which we ended up using 25. They are highlighted by the big black dots.
The second tool was a simple rod on which we marked our three measuring heights, making it easy to adjust the lights for our tests.
Finally, the last and most important tool we used was an Apogee Full Spectrum Quantumsensor, a sensor with a spectral range of 389 to 692 nm. To ensure that all lights reached their respective working temperatures before the tests we switched them to full power 15 minutes prior to the actual tests.
The idea behind the tests was to compare the different lights in real life situations and so the heights in which we installed the respective lights was dependent on the specifications of each single light. We used heights of either 30cm, 60cm or 90cm. The goal was to compare illumination and PPFD data if the lights are used either as you would find them in shops or in use by regular customers. The collected data was transferred to an excel-sheet and is listed below.
LED type
SMD
Operational life span
30 000 hours
Power
100W
EQ. Power
1000W
Color temperature
6000K
Color rendering index CRI
80
Dispersion angle
120 °
Dimming function
No
Warranty
5 Years
LED type
Osram & Cree
Operational life span
50 000 hours
Power
416W
EQ. Power
600W
Color temperature
LED Ratio 660nm/630nm/450nm/460nm/3.5k
Color rendering index CRI
-
Dispersion angle
90 °
Dimming function
No
Warranty
2 Years
LED typ
Osram SSL
Operational life span
100 000 hours
Power
97W
EQ. Power
-
Color temperature
-
Color rendering index CRI
-
Dispersion Angle
-
Dimming function
No
Warranty
5 Years
LED type
-
Operational life span
-
Power
245W
EQ. Power
400W
Color temperature
-
Color rendering index CRI
-
Dispersion angle
-
Dimming function
No
Warranty
-
LED type
-
Operational life span
80 000 hours
Power
30W (per Modul)
EQ. Power
-
Color temperature
-
Color rendering index CRI
-
Dispersion angle
90°
Dimming function
No
Warranty
3 Years
LED type
Cree
Operational life span
50 000 hours
Power
640W
EQ. Power
1000-1200W
Color temperature
-
Color rendering index CRI
-
Disperion angle
90° oder 120°
Dimming function
Yes
Warranty
3 Years
LED type
Cree CXB3590
Operational life span
60 000 hours
Power
150W (per Modul)
EQ. Power
450 W
Color temperature
3500K
Color rendering index CRI
80
Dispersion angle
72°
Dimming function
Yes
Warranty
5 Years
You can (and should) make up your own mind concerning the results and we would love to hear what you think - post your thoughts in our support chat or join one of our live streams on youtube (coming soon). Also, we're currently planning on going live with knowledge transfers. Please get in touch with us if you are interested in that regard!
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