Reptile Lamp Database

CCT:1019 12999K
CRI DC:1017 6.67E-3
CRI R01:1002 35.3 (12999K)
CRI R02:1003 36.9 (12999K)
CRI R03:1004 44.3 (12999K)
CRI R04:1005 37.7 (12999K)
CRI R05:1006 37.7 (12999K)
CRI R06:1007 39.7 (12999K)
CRI R07:1008 38.8 (12999K)
CRI R08:1009 31.0 (12999K)
CRI R09:1010 58.8 (12999K)
CRI R10:1011 27.0 (12999K)
CRI R11:1012 49.5 (12999K)
CRI R12:1013 63.9 (12999K)
CRI R13:1014 11.9 (12999K)
CRI R14:1015 63.6 (12999K)
CRI R15:1016 31.3 (12999K)
CRI Ra:1001 37.7 (12999K)
DC<5.4E-3:1018 false

Area (m²):1040 1.1946E-5
Illuminance (lux):1042 2.8978E3
Luminance (candela per m²):1044 2.8978E3
Luminous Flux (lumen):1041 3.4617E-2
Luminous intensity (candela):1043 3.4617E-2
Observer:1038 Photopic
Solid Angle (steradians):1039 1.0
Source:1037 FLMT09760

Device Source:1022 FLMT09760
Integration Begin:1023 295.00
Integration End:1024 850.00
Method:1025 Uses Simpson's Rule for integration.
Moles of Photons:1034 3.1012E-11
PAR uMoles/m²/sec:1036 5.3296E1
PAR uMoles:1035 2.0437E-5
Photons/cm²/sec:1032 4.8704E15
Total Photons:1033 1.8676E13
dBm:1030 -5.8794E0
eV:1031 5.1741E13
uJoule/cm²:1028 6.9394E1
uJoule:1026 8.2899E0
uWatt/cm²:1029 2.1619E3
uWatt:1027 2.5826E2

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 )	( 0.23 ; 0.46 )	( 0.18 ; 0.19 ; 0.38 )
CCT	14000 Kelvin	11000 Kelvin	11000 Kelvin
distance		0.13	0.11
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)	2220 µW/cm² = 22.2 W/m²
UVC ( 0 nm - 280 nm)	40.1 µW/cm² = 0.401 W/m²
non-terrestrial ( 0 nm - 290 nm)	42 µW/cm² = 0.42 W/m²
total2 ( 250 nm - 880 nm)	2180 µW/cm² = 21.8 W/m²
UVB (EU) ( 280 nm - 315 nm)	518 µW/cm² = 5.18 W/m²
UVB (US) ( 280 nm - 320 nm)	543 µW/cm² = 5.43 W/m²
UVA+B ( 280 nm - 380 nm)	805 µW/cm² = 8.05 W/m²
Solar UVB ( 290 nm - 315 nm)	516 µW/cm² = 5.16 W/m²
UVA D3 regulating ( 315 nm - 335 nm)	89.4 µW/cm² = 0.894 W/m²
UVA (EU) ( 315 nm - 380 nm)	288 µW/cm² = 2.88 W/m²
UVA2 (medical definition) ( 320 nm - 340 nm)	80.7 µW/cm² = 0.807 W/m²
UVA (US) ( 320 nm - 380 nm)	262 µW/cm² = 2.62 W/m²
UVA1 (variant) ( 335 nm - 380 nm)	198 µW/cm² = 1.98 W/m²
UVA1 (medical) ( 340 nm - 400 nm)	240 µW/cm² = 2.4 W/m²
vis. UVA ( 350 nm - 380 nm)	150 µW/cm² = 1.5 W/m²
VIS Rep3 ( 350 nm - 600 nm)	1210 µW/cm² = 12.1 W/m²
VIS Rep4 ( 350 nm - 700 nm)	1420 µW/cm² = 14.2 W/m²
purple ( 380 nm - 420 nm)	204 µW/cm² = 2.04 W/m²
VIS ( 380 nm - 780 nm)	1320 µW/cm² = 13.2 W/m²
VIS2 ( 400 nm - 680 nm)	1180 µW/cm² = 11.8 W/m²
PAR ( 400 nm - 700 nm)	1210 µW/cm² = 12.1 W/m²
tmp ( 400 nm - 1100 nm)	1320 µW/cm² = 13.2 W/m²
blue ( 420 nm - 490 nm)	435 µW/cm² = 4.35 W/m²
green ( 490 nm - 575 nm)	324 µW/cm² = 3.24 W/m²
yellow ( 575 nm - 585 nm)	66 µW/cm² = 0.66 W/m²
orange ( 585 nm - 650 nm)	146 µW/cm² = 1.46 W/m²
red ( 650 nm - 780 nm)	143 µW/cm² = 1.43 W/m²
IR2 ( 655 nm - 685 nm)	61.8 µW/cm² = 0.618 W/m²
IRA ( 700 nm - 1400 nm)	107 µW/cm² = 1.07 W/m²
IRB ( 1400 nm - 3000 nm)	0 µW/cm² = 0 W/m²

Erythema	16.4 UV-Index
Pyrimidine dimerization of DNA	199 µW/cm²
Photoceratitis	35 µW/cm²
Photoconjunctivitis	10.2 µW/cm²
DNA Damage	15.5
Vitamin D3	77.1 µW/cm²
Photosynthesis	879 µW/cm²
Luminosity	2920 lx
Human L-Cone	426 µW/cm²
Human M-Cone	384 µW/cm²
Human S-Cone	392 µW/cm²
CIE X	409 µW/cm²
CIE Y	404 µW/cm²
CIE Z	702 µW/cm²
PAR PPFD	59.4 µmol/m²/s
Extinction preD3	647 e-3*m²/mol
Extinction Tachysterol	1910 e-3*m²/mol
Exctincition PreD3	302000 m²/mol
Extinction Lumisterol	119 m²/mol
Exctincition Tachysterol	2400000 m²/mol
Extinction 7DHC	96.1 m²/mol
L-Cone	347 µW/cm²
M-Cone	363 µW/cm²
S-Cone	742 µW/cm²
U-Cone	507 µW/cm²
UVR - ICNIRP 2004	16.8 Rel Biol Eff
Melatonin Supression	489 µW/cm²
Blue Light Hazard	450 µW/cm² (154 µW/cm² per 1000 lx)
CIE 174:2006 PreVit D3	79.5 µW/cm²
Lumen Reptil	4090 "pseudo-lx"
Vitamin D3 Degradation	95.7 µW/cm²
Actinic UV	16.8 µW/cm² (57.5 mW/klm)
Exctincition Lumisterol	132000 m²/mol
Exctincition 7DHC	107000 m²/mol
Exctincition Toxisterols	92000 m²/mol
UV-Index2	14.3 UV-Index (285-400nm)

Solarmeter 6.2 (UVB, pre 2010)	542 µW/cm²
Solarmeter 6.5 (UV-Index, pre 2010)	20
Leybold UVB	455 µW/cm²
Leybold UVA	182 µW/cm²
Leybold UVC	6.79 µW/cm²
DeltaOhm UVB	542 µW/cm²
DeltaOhm UVC	98.1 µW/cm²
Vernier UVB	187 µW/cm²
Vernier UVA	371 µW/cm²
Gröbel UVA	350 µW/cm²
Gröbel UVB	241 µW/cm²
Gröbel UVC	8.35 µW/cm²
Luxmeter	3050 lx
Solarmeter 6.4 (D3)	62.5 IU/min
UVX-31	601 µW/cm²
IL UVB	0.203 µW/cm²
IL UVA	262 µW/cm²
Solarmeter 6.5 (UVI, post 2010)	18.9 UV-Index
Solarmeter 6.2 (UVB, post 2010)	310 µW/cm² (Solarmeter Ratio = 16.5)
Solarmeter AlGaN 6.5 UVI sensor	368 UV Index
GenUV 7.1 UV-Index	18.2 UV-Index
Solarmeter 10.0 (Global Power) (manuf.)	16.5 W/m²
Solarmeter 4.0 (UVA)	4.29 mW/cm²
LS122 (manuf.)	0.122 W/m²
ISM400 (first guess)	9.52 W/m²
LS122 (assumption)	0.472 W/m²
ISM400_new	8.01 W/m²
Solarmeter 10.0 (Global Power) (assumption)	13.7 W/m²