Reptile Lamp Database

CCT:1019 12206K
CRI DC:1017 4.88E-3
CRI R01:1002 35.1 (12206K)
CRI R02:1003 36.1 (12206K)
CRI R03:1004 42.1 (12206K)
CRI R04:1005 35.1 (12206K)
CRI R05:1006 35.5 (12206K)
CRI R06:1007 37.8 (12206K)
CRI R07:1008 37.6 (12206K)
CRI R08:1009 30.6 (12206K)
CRI R09:1010 61.6 (12206K)
CRI R10:1011 25.6 (12206K)
CRI R11:1012 46.6 (12206K)
CRI R12:1013 63.9 (12206K)
CRI R13:1014 11.4 (12206K)
CRI R14:1015 62.3 (12206K)
CRI R15:1016 31.1 (12206K)
CRI Ra:1001 36.2 (12206K)
DC<5.4E-3:1018 true

Area (m²):1040 1.1946E-5
Illuminance (lux):1042 1.7989E3
Luminance (candela per m²):1044 1.7989E3
Luminous Flux (lumen):1041 2.1490E-2
Luminous intensity (candela):1043 2.1490E-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 2.8327E-11
PAR uMoles/m²/sec:1036 3.2715E1
PAR uMoles:1035 1.8177E-5
Photons/cm²/sec:1032 3.0703E15
Total Photons:1033 1.7059E13
dBm:1030 -7.8581E0
eV:1031 4.7537E13
uJoule/cm²:1028 6.3755E1
uJoule:1026 7.6162E0
uWatt/cm²:1029 1.3708E3
uWatt:1027 1.6375E2

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 ; 0.45 )	( 0.18 ; 0.19 ; 0.37 )
CCT	12000 Kelvin	11000 Kelvin	11000 Kelvin
distance		0.12	0.099
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)	1410 µW/cm² = 14.1 W/m²
UVC ( 0 nm - 280 nm)	16.2 µW/cm² = 0.162 W/m²
non-terrestrial ( 0 nm - 290 nm)	17.3 µW/cm² = 0.173 W/m²
total2 ( 250 nm - 880 nm)	1390 µW/cm² = 13.9 W/m²
UVB (EU) ( 280 nm - 315 nm)	348 µW/cm² = 3.48 W/m²
UVB (US) ( 280 nm - 320 nm)	365 µW/cm² = 3.65 W/m²
UVA+B ( 280 nm - 380 nm)	536 µW/cm² = 5.36 W/m²
Solar UVB ( 290 nm - 315 nm)	347 µW/cm² = 3.47 W/m²
UVA D3 regulating ( 315 nm - 335 nm)	59.7 µW/cm² = 0.597 W/m²
UVA (EU) ( 315 nm - 380 nm)	188 µW/cm² = 1.88 W/m²
UVA2 (medical definition) ( 320 nm - 340 nm)	53.4 µW/cm² = 0.534 W/m²
UVA (US) ( 320 nm - 380 nm)	171 µW/cm² = 1.71 W/m²
UVA1 (variant) ( 335 nm - 380 nm)	129 µW/cm² = 1.29 W/m²
UVA1 (medical) ( 340 nm - 400 nm)	156 µW/cm² = 1.56 W/m²
vis. UVA ( 350 nm - 380 nm)	96.7 µW/cm² = 0.967 W/m²
VIS Rep3 ( 350 nm - 600 nm)	775 µW/cm² = 7.75 W/m²
VIS Rep4 ( 350 nm - 700 nm)	907 µW/cm² = 9.07 W/m²
purple ( 380 nm - 420 nm)	134 µW/cm² = 1.34 W/m²
VIS ( 380 nm - 780 nm)	840 µW/cm² = 8.4 W/m²
VIS2 ( 400 nm - 680 nm)	756 µW/cm² = 7.56 W/m²
PAR ( 400 nm - 700 nm)	772 µW/cm² = 7.72 W/m²
tmp ( 400 nm - 1100 nm)	817 µW/cm² = 8.17 W/m²
blue ( 420 nm - 490 nm)	270 µW/cm² = 2.7 W/m²
green ( 490 nm - 575 nm)	213 µW/cm² = 2.13 W/m²
yellow ( 575 nm - 585 nm)	41.9 µW/cm² = 0.419 W/m²
orange ( 585 nm - 650 nm)	93.7 µW/cm² = 0.937 W/m²
red ( 650 nm - 780 nm)	88.3 µW/cm² = 0.883 W/m²
IR2 ( 655 nm - 685 nm)	39 µW/cm² = 0.39 W/m²
IRA ( 700 nm - 1400 nm)	45.3 µW/cm² = 0.453 W/m²
IRB ( 1400 nm - 3000 nm)	0 µW/cm² = 0 W/m²

Erythema	10.6 UV-Index
Pyrimidine dimerization of DNA	134 µW/cm²
Photoceratitis	23 µW/cm²
Photoconjunctivitis	4.41 µW/cm²
DNA Damage	6.8
Vitamin D3	51.5 µW/cm²
Photosynthesis	556 µW/cm²
Luminosity	1900 lx
Human L-Cone	277 µW/cm²
Human M-Cone	251 µW/cm²
Human S-Cone	243 µW/cm²
CIE X	261 µW/cm²
CIE Y	264 µW/cm²
CIE Z	435 µW/cm²
PAR PPFD	38.1 µmol/m²/s
Extinction preD3	408 e-3*m²/mol
Extinction Tachysterol	1250 e-3*m²/mol
Exctincition PreD3	185000 m²/mol
Extinction Lumisterol	63.4 m²/mol
Exctincition Tachysterol	1580000 m²/mol
Extinction 7DHC	50.3 m²/mol
L-Cone	226 µW/cm²
M-Cone	232 µW/cm²
S-Cone	461 µW/cm²
U-Cone	328 µW/cm²
UVR - ICNIRP 2004	9.35 Rel Biol Eff
Melatonin Supression	306 µW/cm²
Blue Light Hazard	280 µW/cm² (148 µW/cm² per 1000 lx)
CIE 174:2006 PreVit D3	53.2 µW/cm²
Lumen Reptil	2610 "pseudo-lx"
Vitamin D3 Degradation	64 µW/cm²
Actinic UV	9.36 µW/cm² (49.3 mW/klm)
Exctincition Lumisterol	78100 m²/mol
Exctincition 7DHC	60000 m²/mol
Exctincition Toxisterols	45600 m²/mol
UV-Index2	9.54 UV-Index (285-400nm)

Solarmeter 6.2 (UVB, pre 2010)	363 µW/cm²
Solarmeter 6.5 (UV-Index, pre 2010)	13.3
Leybold UVB	306 µW/cm²
Leybold UVA	118 µW/cm²
Leybold UVC	2.92 µW/cm²
DeltaOhm UVB	364 µW/cm²
DeltaOhm UVC	62.6 µW/cm²
Vernier UVB	126 µW/cm²
Vernier UVA	247 µW/cm²
Gröbel UVA	231 µW/cm²
Gröbel UVB	162 µW/cm²
Gröbel UVC	3.51 µW/cm²
Luxmeter	1990 lx
Solarmeter 6.4 (D3)	41.5 IU/min
UVX-31	404 µW/cm²
IL UVB	0.136 µW/cm²
IL UVA	172 µW/cm²
Solarmeter 6.5 (UVI, post 2010)	12.6 UV-Index
Solarmeter 6.2 (UVB, post 2010)	208 µW/cm² (Solarmeter Ratio = 16.6)
Solarmeter AlGaN 6.5 UVI sensor	247 UV Index
GenUV 7.1 UV-Index	12.1 UV-Index
Solarmeter 10.0 (Global Power) (manuf.)	10.2 W/m²
Solarmeter 4.0 (UVA)	2.81 mW/cm²
LS122 (manuf.)	0.015 W/m²
ISM400 (first guess)	5.58 W/m²
LS122 (assumption)	0.251 W/m²
ISM400_new	4.52 W/m²
Solarmeter 10.0 (Global Power) (assumption)	8.37 W/m²