Reptile Lamp Database

CCT:1019 6807K
CRI DC:1017 2.59E-2
CRI R01:1002 44.6 (6807K)
CRI R02:1003 55.9 (6807K)
CRI R03:1004 79.7 (6807K)
CRI R04:1005 73.0 (6807K)
CRI R05:1006 70.6 (6807K)
CRI R06:1007 67.8 (6807K)
CRI R07:1008 57.8 (6807K)
CRI R08:1009 49.1 (6807K)
CRI R09:1010 64.1 (6807K)
CRI R10:1011 61.2 (6807K)
CRI R11:1012 73.3 (6807K)
CRI R12:1013 76.8 (6807K)
CRI R13:1014 33.5 (6807K)
CRI R14:1015 84.9 (6807K)
CRI R15:1016 34.4 (6807K)
CRI Ra:1001 62.3 (6807K)
DC<5.4E-3:1018 false

Area (m²):1040 1.1946E-5
Illuminance (lux):1042 5.1534E2
Luminance (candela per m²):1044 5.1534E2
Luminous Flux (lumen):1041 6.1563E-3
Luminous intensity (candela):1043 6.1563E-3
Observer:1038 Photopic
Solid Angle (steradians):1039 1.0
Source:1037 FLMT09760

Device Source:1022 FLMT09760
Integration Begin:1023 280.00
Integration End:1024 800.00
Method:1025 Uses Simpson's Rule for integration.
Moles of Photons:1034 3.4840E-11
PAR uMoles/m²/sec:1036 8.4101E0
PAR uMoles:1035 2.2288E-5
Photons/cm²/sec:1032 7.9172E14
Total Photons:1033 2.0981E13
dBm:1030 -1.3769E1
eV:1031 5.8138E13
uJoule/cm²:1028 7.7973E1
uJoule:1026 9.3147E0
uWatt/cm²:1029 3.5149E2
uWatt:1027 4.1988E1

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 ; 0.28 )	( 0.22 ; 0.43 )	( 0.22 ; 0.18 ; 0.34 )
CCT	6800 Kelvin	12000 Kelvin	8400 Kelvin
distance		0.1	0.092
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)	348 µW/cm² = 3.48 W/m²
UVC ( 0 nm - 280 nm)	0 µW/cm² = 0 W/m²
non-terrestrial ( 0 nm - 290 nm)	0.202 µW/cm² = 0.00202 W/m²
total2 ( 250 nm - 880 nm)	348 µW/cm² = 3.48 W/m²
UVB (EU) ( 280 nm - 315 nm)	21.1 µW/cm² = 0.211 W/m²
UVB (US) ( 280 nm - 320 nm)	32.4 µW/cm² = 0.324 W/m²
UVA+B ( 280 nm - 380 nm)	143 µW/cm² = 1.43 W/m²
Solar UVB ( 290 nm - 315 nm)	20.9 µW/cm² = 0.209 W/m²
UVA D3 regulating ( 315 nm - 335 nm)	47 µW/cm² = 0.47 W/m²
UVA (EU) ( 315 nm - 380 nm)	122 µW/cm² = 1.22 W/m²
UVA2 (medical definition) ( 320 nm - 340 nm)	48.2 µW/cm² = 0.482 W/m²
UVA (US) ( 320 nm - 380 nm)	111 µW/cm² = 1.11 W/m²
UVA1 (variant) ( 335 nm - 380 nm)	75 µW/cm² = 0.75 W/m²
UVA1 (medical) ( 340 nm - 400 nm)	67.9 µW/cm² = 0.679 W/m²
vis. UVA ( 350 nm - 380 nm)	41.8 µW/cm² = 0.418 W/m²
VIS Rep3 ( 350 nm - 600 nm)	192 µW/cm² = 1.92 W/m²
VIS Rep4 ( 350 nm - 700 nm)	235 µW/cm² = 2.35 W/m²
purple ( 380 nm - 420 nm)	19.6 µW/cm² = 0.196 W/m²
VIS ( 380 nm - 780 nm)	201 µW/cm² = 2.01 W/m²
VIS2 ( 400 nm - 680 nm)	186 µW/cm² = 1.86 W/m²
PAR ( 400 nm - 700 nm)	188 µW/cm² = 1.88 W/m²
tmp ( 400 nm - 1100 nm)	200 µW/cm² = 2 W/m²
blue ( 420 nm - 490 nm)	65.6 µW/cm² = 0.656 W/m²
green ( 490 nm - 575 nm)	49.6 µW/cm² = 0.496 W/m²
yellow ( 575 nm - 585 nm)	8.63 µW/cm² = 0.0863 W/m²
orange ( 585 nm - 650 nm)	42.9 µW/cm² = 0.429 W/m²
red ( 650 nm - 780 nm)	14.6 µW/cm² = 0.146 W/m²
IR2 ( 655 nm - 685 nm)	4 µW/cm² = 0.04 W/m²
IRA ( 700 nm - 1400 nm)	11.6 µW/cm² = 0.116 W/m²
IRB ( 1400 nm - 3000 nm)	0 µW/cm² = 0 W/m²

Erythema	1.33 UV-Index
Pyrimidine dimerization of DNA	12.6 µW/cm²
Photoceratitis	2.12 µW/cm²
Photoconjunctivitis	0.0793 µW/cm²
DNA Damage	0.219
Vitamin D3	5.53 µW/cm²
Photosynthesis	134 µW/cm²
Luminosity	529 lx
Human L-Cone	79.8 µW/cm²
Human M-Cone	64.3 µW/cm²
Human S-Cone	56.5 µW/cm²
CIE X	81.1 µW/cm²
CIE Y	73 µW/cm²
CIE Z	103 µW/cm²
PAR PPFD	9.02 µmol/m²/s
Extinction preD3	36.4 e-3*m²/mol
Extinction Tachysterol	129 e-3*m²/mol
Exctincition PreD3	17500 m²/mol
Extinction Lumisterol	6.45 m²/mol
Exctincition Tachysterol	182000 m²/mol
Extinction 7DHC	6.4 m²/mol
L-Cone	67.6 µW/cm²
M-Cone	54 µW/cm²
S-Cone	103 µW/cm²
U-Cone	82.6 µW/cm²
UVR - ICNIRP 2004	1.15 Rel Biol Eff
Melatonin Supression	69.9 µW/cm²
Blue Light Hazard	63.9 µW/cm² (121 µW/cm² per 1000 lx)
CIE 174:2006 PreVit D3	6.07 µW/cm²
Lumen Reptil	649 "pseudo-lx"
Vitamin D3 Degradation	6.4 µW/cm²
Actinic UV	1.14 µW/cm² (21.5 mW/klm)
Exctincition Lumisterol	9020 m²/mol
Exctincition 7DHC	8090 m²/mol
Exctincition Toxisterols	2850 m²/mol
UV-Index2	1.29 UV-Index (285-400nm)

Solarmeter 6.2 (UVB, pre 2010)	38.8 µW/cm²
Solarmeter 6.5 (UV-Index, pre 2010)	1.61
Leybold UVB	28 µW/cm²
Leybold UVA	76.7 µW/cm²
Leybold UVC	0.00373 µW/cm²
DeltaOhm UVB	63.2 µW/cm²
DeltaOhm UVC	7.95 µW/cm²
Vernier UVB	9.87 µW/cm²
Vernier UVA	83.8 µW/cm²
Gröbel UVA	101 µW/cm²
Gröbel UVB	14.3 µW/cm²
Gröbel UVC	0.00493 µW/cm²
Luxmeter	534 lx
Solarmeter 6.4 (D3)	5.02 IU/min
UVX-31	68.7 µW/cm²
IL UVB	0.0162 µW/cm²
IL UVA	89.4 µW/cm²
Solarmeter 6.5 (UVI, post 2010)	1.31 UV-Index
Solarmeter 6.2 (UVB, post 2010)	25.6 µW/cm² (Solarmeter Ratio = 19.5)
Solarmeter AlGaN 6.5 UVI sensor	17.6 UV Index
GenUV 7.1 UV-Index	0.985 UV-Index
Solarmeter 10.0 (Global Power) (manuf.)	2.64 W/m²
Solarmeter 4.0 (UVA)	1.18 mW/cm²
LS122 (manuf.)	0.0027 W/m²
ISM400 (first guess)	1.47 W/m²
LS122 (assumption)	0.0698 W/m²
ISM400_new	1.19 W/m²
Solarmeter 10.0 (Global Power) (assumption)	2.2 W/m²