Reptile Lamp Database

Area (m²):1019 1.1946E-5
Illuminance (lux):1021 3.9971E2
Luminance (candela per m²):1023 3.9971E2
Luminous Flux (lumen):1020 4.7749E-3
Luminous intensity (candela):1022 4.7749E-3
Observer:1017 Photopic
Solid Angle (steradians):1018 1.0
Source:1016 FLMT09760

Device Source:1001 FLMT09760
Integration Begin:1002 280.00
Integration End:1003 800.00
Method:1004 Uses Simpson's Rule for integration.
Moles of Photons:1013 3.8485E-11
PAR uMoles/m²/sec:1015 6.7476E0
PAR uMoles:1014 2.6395E-5
Photons/cm²/sec:1011 5.9248E14
Total Photons:1012 2.3176E13
dBm:1009 -1.5301E1
eV:1010 6.0308E13
uJoule/cm²:1007 8.0884E1
uJoule:1005 9.6624E0
uWatt/cm²:1008 2.4701E2
uWatt:1006 2.9508E1

CCT:1042 6306K
CRI DC:1040 6.84E-3
CRI R01:1025 31.5 (6306K)
CRI R02:1026 44.0 (6306K)
CRI R03:1027 54.7 (6306K)
CRI R04:1028 49.3 (6306K)
CRI R05:1029 32.2 (6306K)
CRI R06:1030 17.8 (6306K)
CRI R07:1031 12.1 (6306K)
CRI R08:1032 11.7 (6306K)
CRI R09:1033 60.3 (6306K)
CRI R10:1034 38.2 (6306K)
CRI R11:1035 60.8 (6306K)
CRI R12:1036 50.5 (6306K)
CRI R13:1037 15.3 (6306K)
CRI R14:1038 69.1 (6306K)
CRI R15:1039 31.7 (6306K)
CRI Ra:1024 31.6 (6306K)
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	( 0.32 ; 0.32 )	( 0.35 ; 0.45 )	( 0.28 ; 0.25 ; 0.33 )
CCT	6300 Kelvin	6000 Kelvin	5400 Kelvin
distance		0.11	0.081
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)	249 µW/cm² = 2.49 W/m²
UVC ( 0 nm - 280 nm)	0 µW/cm² = 0 W/m²
non-terrestrial ( 0 nm - 290 nm)	0.135 µW/cm² = 0.00135 W/m²
total2 ( 250 nm - 880 nm)	249 µW/cm² = 2.49 W/m²
UVB (EU) ( 280 nm - 315 nm)	14 µW/cm² = 0.14 W/m²
UVB (US) ( 280 nm - 320 nm)	21.9 µW/cm² = 0.219 W/m²
UVA+B ( 280 nm - 380 nm)	84.2 µW/cm² = 0.842 W/m²
Solar UVB ( 290 nm - 315 nm)	13.9 µW/cm² = 0.139 W/m²
UVA D3 regulating ( 315 nm - 335 nm)	32.8 µW/cm² = 0.328 W/m²
UVA (EU) ( 315 nm - 380 nm)	70.2 µW/cm² = 0.702 W/m²
UVA2 (medical definition) ( 320 nm - 340 nm)	33.4 µW/cm² = 0.334 W/m²
UVA (US) ( 320 nm - 380 nm)	62.3 µW/cm² = 0.623 W/m²
UVA1 (variant) ( 335 nm - 380 nm)	37.4 µW/cm² = 0.374 W/m²
UVA1 (medical) ( 340 nm - 400 nm)	30.2 µW/cm² = 0.302 W/m²
vis. UVA ( 350 nm - 380 nm)	14.7 µW/cm² = 0.147 W/m²
VIS Rep3 ( 350 nm - 600 nm)	127 µW/cm² = 1.27 W/m²
VIS Rep4 ( 350 nm - 700 nm)	166 µW/cm² = 1.66 W/m²
purple ( 380 nm - 420 nm)	10.2 µW/cm² = 0.102 W/m²
VIS ( 380 nm - 780 nm)	162 µW/cm² = 1.62 W/m²
VIS2 ( 400 nm - 680 nm)	145 µW/cm² = 1.45 W/m²
PAR ( 400 nm - 700 nm)	150 µW/cm² = 1.5 W/m²
tmp ( 400 nm - 1100 nm)	164 µW/cm² = 1.64 W/m²
blue ( 420 nm - 490 nm)	42 µW/cm² = 0.42 W/m²
green ( 490 nm - 575 nm)	44.7 µW/cm² = 0.447 W/m²
yellow ( 575 nm - 585 nm)	8.28 µW/cm² = 0.0828 W/m²
orange ( 585 nm - 650 nm)	29.8 µW/cm² = 0.298 W/m²
red ( 650 nm - 780 nm)	26.9 µW/cm² = 0.269 W/m²
IR2 ( 655 nm - 685 nm)	10.5 µW/cm² = 0.105 W/m²
IRA ( 700 nm - 1400 nm)	13.4 µW/cm² = 0.134 W/m²
IRB ( 1400 nm - 3000 nm)	0 µW/cm² = 0 W/m²

Erythema	0.839 UV-Index
Pyrimidine dimerization of DNA	8.39 µW/cm²
Photoceratitis	1.36 µW/cm²
Photoconjunctivitis	0.0504 µW/cm²
DNA Damage	0.137
Vitamin D3	3.55 µW/cm²
Photosynthesis	105 µW/cm²
Luminosity	421 lx
Human L-Cone	62.7 µW/cm²
Human M-Cone	52.6 µW/cm²
Human S-Cone	35.7 µW/cm²
CIE X	57.9 µW/cm²
CIE Y	58.4 µW/cm²
CIE Z	66 µW/cm²
PAR PPFD	7.31 µmol/m²/s
Extinction preD3	24.2 e-3*m²/mol
Extinction Tachysterol	85.9 e-3*m²/mol
Exctincition PreD3	11600 m²/mol
Extinction Lumisterol	3.97 m²/mol
Exctincition Tachysterol	121000 m²/mol
Extinction 7DHC	3.82 m²/mol
L-Cone	53.3 µW/cm²
M-Cone	48.1 µW/cm²
S-Cone	62.9 µW/cm²
U-Cone	27.7 µW/cm²
UVR - ICNIRP 2004	0.704 Rel Biol Eff
Melatonin Supression	47.9 µW/cm²
Blue Light Hazard	40 µW/cm² (95 µW/cm² per 1000 lx)
CIE 174:2006 PreVit D3	3.9 µW/cm²
Lumen Reptil	438 "pseudo-lx"
Vitamin D3 Degradation	4.29 µW/cm²
Actinic UV	0.699 µW/cm² (16.6 mW/klm)
Exctincition Lumisterol	5660 m²/mol
Exctincition 7DHC	4850 m²/mol
Exctincition Toxisterols	1930 m²/mol
UV-Index2	0.813 UV-Index (285-400nm)

Solarmeter 6.2 (UVB, pre 2010)	26.3 µW/cm²
Solarmeter 6.5 (UV-Index, pre 2010)	1.03
Leybold UVB	18.9 µW/cm²
Leybold UVA	43.5 µW/cm²
Leybold UVC	0.00221 µW/cm²
DeltaOhm UVB	43.5 µW/cm²
DeltaOhm UVC	5.44 µW/cm²
Vernier UVB	6.48 µW/cm²
Vernier UVA	53.5 µW/cm²
Gröbel UVA	58.9 µW/cm²
Gröbel UVB	9.52 µW/cm²
Gröbel UVC	0.00353 µW/cm²
Luxmeter	430 lx
Solarmeter 6.4 (D3)	3.23 IU/min
UVX-31	46.7 µW/cm²
IL UVB	0.0109 µW/cm²
IL UVA	48.6 µW/cm²
Solarmeter 6.5 (UVI, post 2010)	0.849 UV-Index
Solarmeter 6.2 (UVB, post 2010)	17.5 µW/cm² (Solarmeter Ratio = 20.6)
Solarmeter AlGaN 6.5 UVI sensor	11.7 UV Index
GenUV 7.1 UV-Index	0.658 UV-Index
Solarmeter 10.0 (Global Power) (manuf.)	2.1 W/m²
Solarmeter 4.0 (UVA)	0.624 mW/cm²
LS122 (manuf.)	0.00156 W/m²
ISM400 (first guess)	1.34 W/m²
LS122 (assumption)	0.0644 W/m²
ISM400_new	1.12 W/m²
Solarmeter 10.0 (Global Power) (assumption)	1.85 W/m²