Reptile Lamp Database

CCT:1019 9048K
CRI DC:1017 7.80E-3
CRI R01:1002 51.2 (9048K)
CRI R02:1003 38.6 (9048K)
CRI R03:1004 30.1 (9048K)
CRI R04:1005 3.0 (9048K)
CRI R05:1006 4.8 (9048K)
CRI R06:1007 10.1 (9048K)
CRI R07:1008 33.5 (9048K)
CRI R08:1009 47.3 (9048K)
CRI R09:1010 57.7 (9048K)
CRI R10:1011 35.5 (9048K)
CRI R11:1012 8.0 (9048K)
CRI R12:1013 43.7 (9048K)
CRI R13:1014 22.2 (9048K)
CRI R14:1015 53.9 (9048K)
CRI R15:1016 48.7 (9048K)
CRI Ra:1001 27.3 (9048K)
DC<5.4E-3:1018 false

Area (m²):1040 1.1946E-5
Illuminance (lux):1042 3.3005E2
Luminance (candela per m²):1044 3.3005E2
Luminous Flux (lumen):1041 3.9428E-3
Luminous intensity (candela):1043 3.9428E-3
Observer:1038 Photopic
Solid Angle (steradians):1039 1.0
Source:1037 FLMT09760

Device Source:1022 FLMT09760
Integration Begin:1023 290.00
Integration End:1024 800.00
Method:1025 Uses Simpson's Rule for integration.
Moles of Photons:1034 2.1859E-11
PAR uMoles/m²/sec:1036 5.2286E0
PAR uMoles:1035 1.2267E-5
Photons/cm²/sec:1032 5.6109E14
Total Photons:1033 1.3164E13
dBm:1030 -1.5048E1
eV:1031 3.8340E13
uJoule/cm²:1028 5.1421E1
uJoule:1026 6.1428E0
uWatt/cm²:1029 2.6183E2
uWatt:1027 3.1278E1

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 ; 0.31 )	( 0.23 ; 0.46 )	( 0.21 ; 0.18 ; 0.36 )
CCT	9100 Kelvin	11000 Kelvin	8600 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)	268 µW/cm² = 2.68 W/m²
UVC ( 0 nm - 280 nm)	0 µW/cm² = 0 W/m²
non-terrestrial ( 0 nm - 290 nm)	0.179 µW/cm² = 0.00179 W/m²
total2 ( 250 nm - 880 nm)	268 µW/cm² = 2.68 W/m²
UVB (EU) ( 280 nm - 315 nm)	23.2 µW/cm² = 0.232 W/m²
UVB (US) ( 280 nm - 320 nm)	36.1 µW/cm² = 0.361 W/m²
UVA+B ( 280 nm - 380 nm)	136 µW/cm² = 1.36 W/m²
Solar UVB ( 290 nm - 315 nm)	23.1 µW/cm² = 0.231 W/m²
UVA D3 regulating ( 315 nm - 335 nm)	53.7 µW/cm² = 0.537 W/m²
UVA (EU) ( 315 nm - 380 nm)	113 µW/cm² = 1.13 W/m²
UVA2 (medical definition) ( 320 nm - 340 nm)	54.5 µW/cm² = 0.545 W/m²
UVA (US) ( 320 nm - 380 nm)	100 µW/cm² = 1 W/m²
UVA1 (variant) ( 335 nm - 380 nm)	59.4 µW/cm² = 0.594 W/m²
UVA1 (medical) ( 340 nm - 400 nm)	48.1 µW/cm² = 0.481 W/m²
vis. UVA ( 350 nm - 380 nm)	23.9 µW/cm² = 0.239 W/m²
VIS Rep3 ( 350 nm - 600 nm)	131 µW/cm² = 1.31 W/m²
VIS Rep4 ( 350 nm - 700 nm)	149 µW/cm² = 1.49 W/m²
purple ( 380 nm - 420 nm)	17.6 µW/cm² = 0.176 W/m²
VIS ( 380 nm - 780 nm)	130 µW/cm² = 1.3 W/m²
VIS2 ( 400 nm - 680 nm)	121 µW/cm² = 1.21 W/m²
PAR ( 400 nm - 700 nm)	123 µW/cm² = 1.23 W/m²
tmp ( 400 nm - 1100 nm)	130 µW/cm² = 1.3 W/m²
blue ( 420 nm - 490 nm)	39.2 µW/cm² = 0.392 W/m²
green ( 490 nm - 575 nm)	38.7 µW/cm² = 0.387 W/m²
yellow ( 575 nm - 585 nm)	8.44 µW/cm² = 0.0844 W/m²
orange ( 585 nm - 650 nm)	13.9 µW/cm² = 0.139 W/m²
red ( 650 nm - 780 nm)	12.6 µW/cm² = 0.126 W/m²
IR2 ( 655 nm - 685 nm)	4.75 µW/cm² = 0.0475 W/m²
IRA ( 700 nm - 1400 nm)	6.54 µW/cm² = 0.0654 W/m²
IRB ( 1400 nm - 3000 nm)	0 µW/cm² = 0 W/m²

Erythema	1.4 UV-Index
Pyrimidine dimerization of DNA	13.8 µW/cm²
Photoceratitis	2.24 µW/cm²
Photoconjunctivitis	0.0738 µW/cm²
DNA Damage	0.21
Vitamin D3	5.87 µW/cm²
Photosynthesis	85.3 µW/cm²
Luminosity	346 lx
Human L-Cone	50.2 µW/cm²
Human M-Cone	45.9 µW/cm²
Human S-Cone	35.9 µW/cm²
CIE X	43.9 µW/cm²
CIE Y	48.4 µW/cm²
CIE Z	64.2 µW/cm²
PAR PPFD	6.2 µmol/m²/s
Extinction preD3	39.7 e-3*m²/mol
Extinction Tachysterol	141 e-3*m²/mol
Exctincition PreD3	19000 m²/mol
Extinction Lumisterol	6.48 m²/mol
Exctincition Tachysterol	199000 m²/mol
Extinction 7DHC	6.29 m²/mol
L-Cone	40.8 µW/cm²
M-Cone	34.7 µW/cm²
S-Cone	69.2 µW/cm²
U-Cone	46.7 µW/cm²
UVR - ICNIRP 2004	1.17 Rel Biol Eff
Melatonin Supression	44.9 µW/cm²
Blue Light Hazard	41.9 µW/cm² (121 µW/cm² per 1000 lx)
CIE 174:2006 PreVit D3	6.43 µW/cm²
Lumen Reptil	412 "pseudo-lx"
Vitamin D3 Degradation	7.05 µW/cm²
Actinic UV	1.16 µW/cm² (33.5 mW/klm)
Exctincition Lumisterol	9220 m²/mol
Exctincition 7DHC	8040 m²/mol
Exctincition Toxisterols	3150 m²/mol
UV-Index2	1.37 UV-Index (285-400nm)

Solarmeter 6.2 (UVB, pre 2010)	43.2 µW/cm²
Solarmeter 6.5 (UV-Index, pre 2010)	1.7
Leybold UVB	31.1 µW/cm²
Leybold UVA	69.4 µW/cm²
Leybold UVC	0.00344 µW/cm²
DeltaOhm UVB	71.2 µW/cm²
DeltaOhm UVC	8.94 µW/cm²
Vernier UVB	10.7 µW/cm²
Vernier UVA	86.3 µW/cm²
Gröbel UVA	94.7 µW/cm²
Gröbel UVB	15.7 µW/cm²
Gröbel UVC	0.000816 µW/cm²
Luxmeter	366 lx
Solarmeter 6.4 (D3)	5.31 IU/min
UVX-31	76.3 µW/cm²
IL UVB	0.0179 µW/cm²
IL UVA	78 µW/cm²
Solarmeter 6.5 (UVI, post 2010)	1.4 UV-Index
Solarmeter 6.2 (UVB, post 2010)	28.8 µW/cm² (Solarmeter Ratio = 20.6)
Solarmeter AlGaN 6.5 UVI sensor	19.3 UV Index
GenUV 7.1 UV-Index	1.08 UV-Index
Solarmeter 10.0 (Global Power) (manuf.)	1.82 W/m²
Solarmeter 4.0 (UVA)	1.01 mW/cm²
LS122 (manuf.)	0.0007 W/m²
ISM400 (first guess)	0.899 W/m²
LS122 (assumption)	0.0399 W/m²
ISM400_new	0.71 W/m²
Solarmeter 10.0 (Global Power) (assumption)	1.43 W/m²