CCT:1019
5827K
CRI DC:1017
1.95E-2
CRI R01:1002
79.1 (5827K)
CRI R02:1003
24.7 (5827K)
CRI R03:1004
-29.9 (5827K)
CRI R04:1005
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CRI R05:1006
-108.1 (5827K)
CRI R06:1007
-82.4 (5827K)
CRI R07:1008
13.1 (5827K)
CRI R08:1009
68.2 (5827K)
CRI R09:1010
-223.0 (5827K)
CRI R10:1011
35.0 (5827K)
CRI R11:1012
-120.4 (5827K)
CRI R12:1013
-41.7 (5827K)
CRI R13:1014
22.2 (5827K)
CRI R14:1015
12.6 (5827K)
CRI R15:1016
82.1 (5827K)
CRI Ra:1001
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DC<5.4E-3:1018
false
Spectrum 811: TG-RZMVB160-001 Edit
DeleteMeasurement
| Brand |
Repti-Zoo Brand by Dongguan ETAN Pet Supplies Co., Ltd., located in China. http://www.repti-zoo.com/en/index.php. |
|---|---|
| Lamp Product |
ReptiZoo Super Sun UV 160W Mercury Vapour Bulb |
| Lamp ID |
TG-RZMVB160-001 (10/2024) Provided for testing |
| Spectrometer | FLAME UV-Vis (E) |
| Ballast | - no ballast or default/unknown ballast - |
| Reflector | |
| Distance | 100 cm |
| Age | 100 hours |
| Originator (measurement) | Thomas Griffiths |
Database entry created:
Thomas Griffiths (Tomaskas Ltd.)
26/Oct/2024 ; updated:
Thomas Griffiths (Tomaskas Ltd.)
26/Oct/2024
Colorimetry
Colorimetry is the science to describe physically the human color perception. The wavelength range 380 nm - 780 nm is visible to humans and detected by three different photoreceptors. Many Reptiles see the range 350 nm - 800 nm and have an additional UV photoreceptor in their retina.
Whereas a spectrometer measures the intensity in every tiny wavelength interval resulting in thousands of individual intensities, the human eye only measures three intensities detected by the three cones. The same is true for the reptile eye with usually three or four photoreceptors. Effectively the detailled spectrum displayed above reduces to a much compacter bar graph displayed below. The photoreceptor sensitivites from these L-Cone, M-Cone, S-Cone, and U-Cone are used, they are chosen as an average of measured reptile photoreceptor sensitivity curves. The bar graph also shows as reference the intensity seen by the three or four photoreceptors for average sunlight (id 1).
From these three numbers the colour coordinate and the correlated colour temperature for humans are calculated using the CIE standard method. I adapted this concept to a "3 cone reptile (M,S,U)" and a "4 cone reptile (L,M,S,U)". I am sure, that this adaption to other colour spaces makes sense mathematically and this is also done in scientific research regarding colour vision of animals, however I have not seen calculation of colour temperatures for other animals in the scientific literature. Even if it is hypothetical, at least this shows, how arbitrary the colour temperature is, and that the colour temperature calculated for humans does not apply to reptiles. The colour spaces also show the colour coordinates of different phases of daylight ((ids 1, 338 – 451, 511 – 513 ), indicated by crosses, coloured in the appriximate colour perceived by a human.
| Human (CIE) | 3 cone reptile | 4 cone reptile | |
|---|---|---|---|
| Cone Excitation | |||
| Colour Coordinate | ( 0.32 ; 0.38 ) | ( 0.13 ; 0.38 ) | ( 0.27 ; 0.097 ; 0.28 ) |
| CCT | 5800 Kelvin | 0 Kelvin | 8000 Kelvin |
| distance | 0 | 0.16 | |
| colour space | 3-D-graph not implemented yet |
Vitamin D3 Analysis
Vitamin D3 is produced by UVB radiation around 300 nm. 7DHC/ProD3 present in the skin is converted to PreD3 when absorbing an UV photon. PreD3 can be converted back to ProD3, to Lumisterol, or to Tachysterol when absorbing another UV photon or can be converted to Vitamin D3 in a warm environment.
This process prevents any overdose of vitamin D3 from UV radiation with a spectrum similar to sunlight. As a comparison the solar spectra at 20°(id:14) and at 85°(id:21) solar angle are shown.
The ratio of the two solarmeters 6.2 (UVB) and 6.5 (UV index) readings has proven a useful and very simply number to acess the spectral shape in the vitamin-d3-active region.
Effective Irradiances
Effective irradiances are calculated for all ranges, actionspectra and radiometers currently present in this database.
The calculation method is a numerical implementation (Simpson's rule) of the formula
To learn more about calculating effective irradiances and radiometers I recommend this excellent report on UVB meters: Characterizing the Performance of Integral Measuring UV-Meters (pdf).
The numbers in the following tables can also be used to estimate certain (effective) irradiances from radiomer readings. Example: If the database lists
- range: UVB (US) = 13.8 µW/cm²
- radiometer: Solarmeter 6.2 = 19.6 µW/cm²
Ranges
total ( 0 nm - 0 nm) 2160 µW/cm² = 21.6 W/m² UVC ( 0 nm - 280 nm) 1.38 µW/cm² = 0.0138 W/m² non-terrestrial ( 0 nm - 290 nm) 3.81 µW/cm² = 0.0381 W/m² total2 ( 250 nm - 880 nm) 2160 µW/cm² = 21.6 W/m² UVB (EU) ( 280 nm - 315 nm) 112 µW/cm² = 1.12 W/m² UVB (US) ( 280 nm - 320 nm) 120 µW/cm² = 1.2 W/m² UVA+B ( 280 nm - 380 nm) 551 µW/cm² = 5.51 W/m² Solar UVB ( 290 nm - 315 nm) 110 µW/cm² = 1.1 W/m² UVA D3 regulating ( 315 nm - 335 nm) 34.5 µW/cm² = 0.345 W/m² UVA (EU) ( 315 nm - 380 nm) 439 µW/cm² = 4.39 W/m² UVA2 (medical definition) ( 320 nm - 340 nm) 35.8 µW/cm² = 0.358 W/m² UVA (US) ( 320 nm - 380 nm) 431 µW/cm² = 4.31 W/m² UVA1 (variant) ( 335 nm - 380 nm) 404 µW/cm² = 4.04 W/m² UVA1 (medical) ( 340 nm - 400 nm) 412 µW/cm² = 4.12 W/m² vis. UVA ( 350 nm - 380 nm) 386 µW/cm² = 3.86 W/m² VIS Rep3 ( 350 nm - 600 nm) 1690 µW/cm² = 16.9 W/m² VIS Rep4 ( 350 nm - 700 nm) 1780 µW/cm² = 17.8 W/m² purple ( 380 nm - 420 nm) 175 µW/cm² = 1.75 W/m² VIS ( 380 nm - 780 nm) 1480 µW/cm² = 14.8 W/m² VIS2 ( 400 nm - 680 nm) 1350 µW/cm² = 13.5 W/m² PAR ( 400 nm - 700 nm) 1380 µW/cm² = 13.8 W/m² tmp ( 400 nm - 1100 nm) 1590 µW/cm² = 15.9 W/m² blue ( 420 nm - 490 nm) 339 µW/cm² = 3.39 W/m² green ( 490 nm - 575 nm) 436 µW/cm² = 4.36 W/m² yellow ( 575 nm - 585 nm) 340 µW/cm² = 3.4 W/m² orange ( 585 nm - 650 nm) 54.9 µW/cm² = 0.549 W/m² red ( 650 nm - 780 nm) 137 µW/cm² = 1.37 W/m² IRA ( 700 nm - 1400 nm) 214 µW/cm² = 2.14 W/m² IR2 ( 720 nm - 1100 nm) 193 µW/cm² = 1.93 W/m² IRB ( 1400 nm - 3000 nm) 0 µW/cm² = 0 W/m²
Actionspectra
Erythema 9.86 UV-Index Pyrimidine dimerization of DNA 48.9 µW/cm² Photoceratitis 15.2 µW/cm² Photoconjunctivitis 1.62 µW/cm² DNA Damage 3.33 Vitamin D3 33.8 µW/cm² Photosynthesis 870 µW/cm² Luminosity 5270 lx Human L-Cone 775 µW/cm² Human M-Cone 681 µW/cm² Human S-Cone 333 µW/cm² CIE X 638 µW/cm² CIE Y 750 µW/cm² CIE Z 583 µW/cm² PAR 6960000 mol photons Extinction preD3 172 e-3*m²/mol Extinction Tachysterol 601 e-3*m²/mol Exctincition PreD3 92000 m²/mol Extinction Lumisterol 69 m²/mol Exctincition Tachysterol 770000 m²/mol Extinction 7DHC 82.3 m²/mol L-Cone 656 µW/cm² M-Cone 236 µW/cm² S-Cone 686 µW/cm² U-Cone 861 µW/cm² UVR - ICNIRP 2004 11.4 Rel Biol Eff Melatonin Supression 375 µW/cm² Blue Light Hazard 383 µW/cm² (72.8 µW/cm² per 1000 lx) CIE 174:2006 PreVit D3 35.5 µW/cm² Lumen Reptil 5180 "pseudo-lx" Vitamin D3 Degradation 25.8 µW/cm² Actinic UV 11.1 µW/cm² (21.1 mW/klm) Exctincition Lumisterol 84800 m²/mol Exctincition 7DHC 97900 m²/mol Exctincition Toxisterols 9720 m²/mol
Broadbandmeters
Solarmeter 6.2 (UVB, pre 2010) 128 µW/cm² Solarmeter 6.5 (UV-Index, pre 2010) 9.95 Leybold UVB 98.7 µW/cm² Leybold UVA 296 µW/cm² Leybold UVC 0.509 µW/cm² DeltaOhm UVB 125 µW/cm² DeltaOhm UVC 20.9 µW/cm² Vernier UVB 44.4 µW/cm² Vernier UVA 197 µW/cm² Gröbel UVA 386 µW/cm² Gröbel UVB 63.3 µW/cm² Gröbel UVC 0.82 µW/cm² Luxmeter 5720 lx Solarmeter 6.4 (D3) 31.1 IU/min UVX-31 148 µW/cm² IL UVB 0.0529 µW/cm² IL UVA 401 µW/cm² Solarmeter 6.5 (UVI, post 2010) 7.1 UV-Index Solarmeter 6.2 (UVB, post 2010) 67.8 µW/cm² (Solarmeter Ratio = 9.56) Solarmeter AlGaN 6.5 UVI sensor 80 UV Index GenUV 7.1 UV-Index 4.12 UV-Index Solarmeter 10.0 (Global Power) (manuf.) 19.4 W/m² Solarmeter 4.0 (UVA) 5.43 mW/cm² LS122 (manuf.) 0.217 W/m² ISM400 (first guess) 13.3 W/m² LS122 (assumption) 0.745 W/m² ISM400_new 11.6 W/m² Solarmeter 10.0 (Global Power) (assumption) 17.6 W/m²