Reptile Lamp Database

Area (m²):1019 1.1946E-5
Illuminance (lux):1021 3.1038E3
Luminance (candela per m²):1023 3.1038E3
Luminous Flux (lumen):1020 3.7078E-2
Luminous intensity (candela):1022 3.7078E-2
Observer:1017 Photopic
Solid Angle (steradians):1018 1.0
Source:1016 FLMT09760

Device Source:1001 FLMT09760
Integration Begin:1002 280.00
Integration End:1003 865.00
Method:1004 Uses Simpson's Rule for integration.
Moles of Photons:1013 8.2822E-11
PAR uMoles/m²/sec:1015 6.3471E1
PAR uMoles:1014 4.7230E-5
Photons/cm²/sec:1011 6.7028E15
Total Photons:1012 4.9877E13
dBm:1009 -5.3426E0
eV:1010 1.1362E14
uJoule/cm²:1007 1.5238E2
uJoule:1005 1.8203E1
uWatt/cm²:1008 2.4463E3
uWatt:1006 2.9224E2

CCT:1042 13421K
CRI DC:1040 8.81E-3
CRI R01:1025 89.0 (13421K)
CRI R02:1026 88.9 (13421K)
CRI R03:1027 89.8 (13421K)
CRI R04:1028 86.7 (13421K)
CRI R05:1029 85.7 (13421K)
CRI R06:1030 82.0 (13421K)
CRI R07:1031 84.0 (13421K)
CRI R08:1032 80.6 (13421K)
CRI R09:1033 26.3 (13421K)
CRI R10:1034 71.4 (13421K)
CRI R11:1035 86.1 (13421K)
CRI R12:1036 80.2 (13421K)
CRI R13:1037 86.2 (13421K)
CRI R14:1038 93.7 (13421K)
CRI R15:1039 81.7 (13421K)
CRI Ra:1024 85.8 (13421K)
DC<5.4E-3:1041 false

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 (ASTM spectrum).

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	( 0.27 ; 0.27 )	( 0.21 ; 0.39 )	( 0.15 ; 0.18 ; 0.33 )
CCT	13000 Kelvin	15000 Kelvin	16000 Kelvin
distance		0.068	0.056
colour space			3-D-graph not implemented yet

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 readings of two solarmeters 6.2 (UVB) and 6.5 (UV index) has proven a useful and very simply number to acess the spectral shape in the vitamin-d3-active region.

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).

total ( 0 nm - 0 nm)	2540 µW/cm² = 25.4 W/m²
UVC ( 0 nm - 280 nm)	0 µW/cm² = 0 W/m²
non-terrestrial ( 0 nm - 290 nm)	0 µW/cm² = 0 W/m²
total2 ( 250 nm - 880 nm)	2520 µW/cm² = 25.2 W/m²
UVB (EU) ( 280 nm - 315 nm)	15.2 µW/cm² = 0.152 W/m²
UVB (US) ( 280 nm - 320 nm)	18.5 µW/cm² = 0.185 W/m²
UVA+B ( 280 nm - 380 nm)	289 µW/cm² = 2.89 W/m²
Solar UVB ( 290 nm - 315 nm)	15.2 µW/cm² = 0.152 W/m²
UVA D3 regulating ( 315 nm - 335 nm)	19.3 µW/cm² = 0.193 W/m²
UVA (EU) ( 315 nm - 380 nm)	273 µW/cm² = 2.73 W/m²
UVA2 (medical definition) ( 320 nm - 340 nm)	25.3 µW/cm² = 0.253 W/m²
UVA (US) ( 320 nm - 380 nm)	270 µW/cm² = 2.7 W/m²
UVA1 (variant) ( 335 nm - 380 nm)	254 µW/cm² = 2.54 W/m²
UVA1 (medical) ( 340 nm - 400 nm)	416 µW/cm² = 4.16 W/m²
vis. UVA ( 350 nm - 380 nm)	218 µW/cm² = 2.18 W/m²
VIS Rep3 ( 350 nm - 600 nm)	1630 µW/cm² = 16.3 W/m²
VIS Rep4 ( 350 nm - 700 nm)	1880 µW/cm² = 18.8 W/m²
purple ( 380 nm - 420 nm)	396 µW/cm² = 3.96 W/m²
VIS ( 380 nm - 780 nm)	1780 µW/cm² = 17.8 W/m²
VIS2 ( 400 nm - 680 nm)	1440 µW/cm² = 14.4 W/m²
PAR ( 400 nm - 700 nm)	1500 µW/cm² = 15 W/m²
tmp ( 400 nm - 1100 nm)	2080 µW/cm² = 20.8 W/m²
blue ( 420 nm - 490 nm)	529 µW/cm² = 5.29 W/m²
green ( 490 nm - 575 nm)	371 µW/cm² = 3.71 W/m²
yellow ( 575 nm - 585 nm)	69.4 µW/cm² = 0.694 W/m²
orange ( 585 nm - 650 nm)	178 µW/cm² = 1.78 W/m²
red ( 650 nm - 780 nm)	237 µW/cm² = 2.37 W/m²
IR2 ( 655 nm - 685 nm)	71.5 µW/cm² = 0.715 W/m²
IRA ( 700 nm - 1400 nm)	585 µW/cm² = 5.85 W/m²
IRB ( 1400 nm - 3000 nm)	0 µW/cm² = 0 W/m²

Erythema	1.61 UV-Index
Pyrimidine dimerization of DNA	8.01 µW/cm²
Photoceratitis	2.4 µW/cm²
Photoconjunctivitis	0.0871 µW/cm²
DNA Damage	0.311
Vitamin D3	5.49 µW/cm²
Photosynthesis	1110 µW/cm²
Luminosity	3300 lx
Human L-Cone	482 µW/cm²
Human M-Cone	433 µW/cm²
Human S-Cone	462 µW/cm²
CIE X	462 µW/cm²
CIE Y	454 µW/cm²
CIE Z	787 µW/cm²
PAR PPFD	69 µmol/m²/s
Extinction preD3	26.3 e-3*m²/mol
Extinction Tachysterol	95.9 e-3*m²/mol
Exctincition PreD3	13900 m²/mol
Extinction Lumisterol	9.41 m²/mol
Exctincition Tachysterol	136000 m²/mol
Extinction 7DHC	11.7 m²/mol
L-Cone	391 µW/cm²
M-Cone	479 µW/cm²
S-Cone	882 µW/cm²
U-Cone	905 µW/cm²
UVR - ICNIRP 2004	1.7 Rel Biol Eff
Melatonin Supression	622 µW/cm²
Blue Light Hazard	585 µW/cm² (177 µW/cm² per 1000 lx)
CIE 174:2006 PreVit D3	5.83 µW/cm²
Lumen Reptil	5440 "pseudo-lx"
Vitamin D3 Degradation	4.11 µW/cm²
Actinic UV	1.67 µW/cm² (5.06 mW/klm)
Exctincition Lumisterol	11700 m²/mol
Exctincition 7DHC	14100 m²/mol
Exctincition Toxisterols	1950 m²/mol
UV-Index2	1.61 UV-Index (285-400nm)

Solarmeter 6.2 (UVB, pre 2010)	23.1 µW/cm²
Solarmeter 6.5 (UV-Index, pre 2010)	1.6
Leybold UVB	16.2 µW/cm²
Leybold UVA	206 µW/cm²
Leybold UVC	0.00783 µW/cm²
DeltaOhm UVB	33.4 µW/cm²
DeltaOhm UVC	4.11 µW/cm²
Vernier UVB	7.13 µW/cm²
Vernier UVA	118 µW/cm²
Gröbel UVA	223 µW/cm²
Gröbel UVB	10.2 µW/cm²
Gröbel UVC	-0.00341 µW/cm²
Luxmeter	3450 lx
Solarmeter 6.4 (D3)	4.99 IU/min
UVX-31	45.3 µW/cm²
IL UVB	0.0106 µW/cm²
IL UVA	255 µW/cm²
Solarmeter 6.5 (UVI, post 2010)	1.14 UV-Index
Solarmeter 6.2 (UVB, post 2010)	12.9 µW/cm² (Solarmeter Ratio = 11.3)
Solarmeter AlGaN 6.5 UVI sensor	11.9 UV Index
GenUV 7.1 UV-Index	0.687 UV-Index
Solarmeter 10.0 (Global Power) (manuf.)	26 W/m²
Solarmeter 4.0 (UVA)	4.49 mW/cm²
LS122 (manuf.)	1.33 W/m²
ISM400 (first guess)	21.9 W/m²
LS122 (assumption)	1.54 W/m²
ISM400_new	21.7 W/m²
Solarmeter 10.0 (Global Power) (assumption)	24.2 W/m²