Reptile Lamp Database

CCT:1042 9166K
CRI DC:1040 1.42E-2
CRI R01:1025 61.8 (9166K)
CRI R02:1026 75.2 (9166K)
CRI R03:1027 76.2 (9166K)
CRI R04:1028 60.9 (9166K)
CRI R05:1029 45.2 (9166K)
CRI R06:1030 37.0 (9166K)
CRI R07:1031 39.0 (9166K)
CRI R08:1032 41.6 (9166K)
CRI R09:1033 14.2 (9166K)
CRI R10:1034 76.3 (9166K)
CRI R11:1035 60.8 (9166K)
CRI R12:1036 67.1 (9166K)
CRI R13:1037 56.3 (9166K)
CRI R14:1038 78.9 (9166K)
CRI R15:1039 65.6 (9166K)
CRI Ra:1024 54.6 (9166K)
DC<5.4E-3:1041 false

Device Source:1001 FLMT09760
Integration Begin:1002 400.00
Integration End:1003 700.00
Method:1004 Uses Simpson's Rule for integration.
Moles of Photons:1013 1.8246E-11
PAR uMoles/m²/sec:1015 2.2416E1
PAR uMoles:1014 1.8246E-5
Photons/cm²/sec:1011 1.3499E15
Total Photons:1012 1.0988E13
dBm:1009 -1.2028E1
eV:1010 2.6661E13
uJoule/cm²:1007 3.5757E1
uJoule:1005 4.2716E0
uWatt/cm²:1008 5.2476E2
uWatt:1006 6.2688E1

Area (m²):1019 1.1946E-5
Illuminance (lux):1021 1.5111E3
Luminance (candela per m²):1023 1.5111E3
Luminous Flux (lumen):1020 1.8051E-2
Luminous intensity (candela):1022 1.8051E-2
Observer:1017 Photopic
Solid Angle (steradians):1018 1.0
Source:1016 FLMT09760

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	( 0.28 ; 0.32 )	( 0.34 ; 0.42 )	( 0.22 ; 0.26 ; 0.33 )
CCT	9200 Kelvin	6300 Kelvin	6600 Kelvin
distance		0.08	0.064
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)	1220 µW/cm² = 12.2 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)	1220 µW/cm² = 12.2 W/m²
UVB (EU) ( 280 nm - 315 nm)	83.2 µW/cm² = 0.832 W/m²
UVB (US) ( 280 nm - 320 nm)	145 µW/cm² = 1.45 W/m²
UVA+B ( 280 nm - 380 nm)	680 µW/cm² = 6.8 W/m²
Solar UVB ( 290 nm - 315 nm)	83.2 µW/cm² = 0.832 W/m²
UVA D3 regulating ( 315 nm - 335 nm)	278 µW/cm² = 2.78 W/m²
UVA (EU) ( 315 nm - 380 nm)	597 µW/cm² = 5.97 W/m²
UVA2 (medical definition) ( 320 nm - 340 nm)	295 µW/cm² = 2.95 W/m²
UVA (US) ( 320 nm - 380 nm)	536 µW/cm² = 5.36 W/m²
UVA1 (variant) ( 335 nm - 380 nm)	319 µW/cm² = 3.19 W/m²
UVA1 (medical) ( 340 nm - 400 nm)	246 µW/cm² = 2.46 W/m²
vis. UVA ( 350 nm - 380 nm)	111 µW/cm² = 1.11 W/m²
VIS Rep3 ( 350 nm - 600 nm)	569 µW/cm² = 5.69 W/m²
VIS Rep4 ( 350 nm - 700 nm)	640 µW/cm² = 6.4 W/m²
purple ( 380 nm - 420 nm)	47.6 µW/cm² = 0.476 W/m²
VIS ( 380 nm - 780 nm)	536 µW/cm² = 5.36 W/m²
VIS2 ( 400 nm - 680 nm)	521 µW/cm² = 5.21 W/m²
PAR ( 400 nm - 700 nm)	524 µW/cm² = 5.24 W/m²
tmp ( 400 nm - 1100 nm)	531 µW/cm² = 5.31 W/m²
blue ( 420 nm - 490 nm)	182 µW/cm² = 1.82 W/m²
green ( 490 nm - 575 nm)	191 µW/cm² = 1.91 W/m²
yellow ( 575 nm - 585 nm)	22.6 µW/cm² = 0.226 W/m²
orange ( 585 nm - 650 nm)	76.5 µW/cm² = 0.765 W/m²
red ( 650 nm - 780 nm)	16.2 µW/cm² = 0.162 W/m²
IR2 ( 655 nm - 685 nm)	5.1 µW/cm² = 0.051 W/m²
IRA ( 700 nm - 1400 nm)	6.89 µW/cm² = 0.0689 W/m²
IRB ( 1400 nm - 3000 nm)	0 µW/cm² = 0 W/m²

Erythema	4.42 UV-Index
Pyrimidine dimerization of DNA	52.7 µW/cm²
Photoceratitis	7.03 µW/cm²
Photoconjunctivitis	0.115 µW/cm²
DNA Damage	0.385
Vitamin D3	19.3 µW/cm²
Photosynthesis	360 µW/cm²
Luminosity	1580 lx
Human L-Cone	228 µW/cm²
Human M-Cone	212 µW/cm²
Human S-Cone	153 µW/cm²
CIE X	192 µW/cm²
CIE Y	220 µW/cm²
CIE Z	283 µW/cm²
PAR PPFD	25 µmol/m²/s
Extinction preD3	151 e-3*m²/mol
Extinction Tachysterol	543 e-3*m²/mol
Exctincition PreD3	72500 m²/mol
Extinction Lumisterol	16.1 m²/mol
Exctincition Tachysterol	805000 m²/mol
Extinction 7DHC	13.1 m²/mol
L-Cone	180 µW/cm²
M-Cone	214 µW/cm²
S-Cone	268 µW/cm²
U-Cone	152 µW/cm²
UVR - ICNIRP 2004	3.15 Rel Biol Eff
Melatonin Supression	210 µW/cm²
Blue Light Hazard	175 µW/cm² (110 µW/cm² per 1000 lx)
CIE 174:2006 PreVit D3	21.2 µW/cm²
Lumen Reptil	1800 "pseudo-lx"
Vitamin D3 Degradation	28 µW/cm²
Actinic UV	3.13 µW/cm² (19.8 mW/klm)
Exctincition Lumisterol	25500 m²/mol
Exctincition 7DHC	17600 m²/mol
Exctincition Toxisterols	13800 m²/mol
UV-Index2	4.42 UV-Index (285-400nm)

Solarmeter 6.2 (UVB, pre 2010)	181 µW/cm²
Solarmeter 6.5 (UV-Index, pre 2010)	5.65
Leybold UVB	127 µW/cm²
Leybold UVA	379 µW/cm²
Leybold UVC	0.00575 µW/cm²
DeltaOhm UVB	339 µW/cm²
DeltaOhm UVC	39.7 µW/cm²
Vernier UVB	37.8 µW/cm²
Vernier UVA	452 µW/cm²
Gröbel UVA	499 µW/cm²
Gröbel UVB	59.7 µW/cm²
Gröbel UVC	-0.0408 µW/cm²
Luxmeter	1660 lx
Solarmeter 6.4 (D3)	17.7 IU/min
UVX-31	365 µW/cm²
IL UVB	0.0768 µW/cm²
IL UVA	414 µW/cm²
Solarmeter 6.5 (UVI, post 2010)	4.83 UV-Index
Solarmeter 6.2 (UVB, post 2010)	126 µW/cm² (Solarmeter Ratio = 26.2)
Solarmeter AlGaN 6.5 UVI sensor	71.5 UV Index
GenUV 7.1 UV-Index	4.19 UV-Index
Solarmeter 10.0 (Global Power) (manuf.)	7.83 W/m²
Solarmeter 4.0 (UVA)	5.18 mW/cm²
LS122 (manuf.)	0 W/m²
ISM400 (first guess)	3.37 W/m²
LS122 (assumption)	0.142 W/m²
ISM400_new	2.5 W/m²
Solarmeter 10.0 (Global Power) (assumption)	5.92 W/m²