Reptile Lamp Database

CCT:1019 9420K
CRI DC:1017 2.54E-2
CRI R01:1002 20.7 (9420K)
CRI R02:1003 24.2 (9420K)
CRI R03:1004 56.9 (9420K)
CRI R04:1005 30.8 (9420K)
CRI R05:1006 24.5 (9420K)
CRI R06:1007 15.2 (9420K)
CRI R07:1008 23.1 (9420K)
CRI R08:1009 23.6 (9420K)
CRI R09:1010 61.9 (9420K)
CRI R10:1011 22.1 (9420K)
CRI R11:1012 20.8 (9420K)
CRI R12:1013 53.6 (9420K)
CRI R13:1014 -3.1 (9420K)
CRI R14:1015 75.4 (9420K)
CRI R15:1016 3.6 (9420K)
CRI Ra:1001 27.4 (9420K)
DC<5.4E-3:1018 false

Area (m²):1040 1.1946E-5
Illuminance (lux):1042 3.7406E2
Luminance (candela per m²):1044 3.7406E2
Luminous Flux (lumen):1041 4.4686E-3
Luminous intensity (candela):1043 4.4686E-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 2.4100E-11
PAR uMoles/m²/sec:1036 6.2031E0
PAR uMoles:1035 1.3453E-5
Photons/cm²/sec:1032 6.6922E14
Total Photons:1033 1.4513E13
dBm:1030 -1.4194E1
eV:1031 4.3140E13
uJoule/cm²:1028 5.7858E1
uJoule:1026 6.9118E0
uWatt/cm²:1029 3.1871E2
uWatt:1027 3.8073E1

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	( 0.3 ; 0.27 )	( 0.2 ; 0.52 )	( 0.21 ; 0.16 ; 0.41 )
CCT	9400 Kelvin	11000 Kelvin	9300 Kelvin
distance		0.2	0.15
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)	319 µW/cm² = 3.19 W/m²
UVC ( 0 nm - 280 nm)	0 µW/cm² = 0 W/m²
non-terrestrial ( 0 nm - 290 nm)	0.198 µW/cm² = 0.00198 W/m²
total2 ( 250 nm - 880 nm)	319 µW/cm² = 3.19 W/m²
UVB (EU) ( 280 nm - 315 nm)	27.7 µW/cm² = 0.277 W/m²
UVB (US) ( 280 nm - 320 nm)	43.5 µW/cm² = 0.435 W/m²
UVA+B ( 280 nm - 380 nm)	168 µW/cm² = 1.68 W/m²
Solar UVB ( 290 nm - 315 nm)	27.5 µW/cm² = 0.275 W/m²
UVA D3 regulating ( 315 nm - 335 nm)	65.8 µW/cm² = 0.658 W/m²
UVA (EU) ( 315 nm - 380 nm)	140 µW/cm² = 1.4 W/m²
UVA2 (medical definition) ( 320 nm - 340 nm)	67.3 µW/cm² = 0.673 W/m²
UVA (US) ( 320 nm - 380 nm)	124 µW/cm² = 1.24 W/m²
UVA1 (variant) ( 335 nm - 380 nm)	74.1 µW/cm² = 0.741 W/m²
UVA1 (medical) ( 340 nm - 400 nm)	58.4 µW/cm² = 0.584 W/m²
vis. UVA ( 350 nm - 380 nm)	28.5 µW/cm² = 0.285 W/m²
VIS Rep3 ( 350 nm - 600 nm)	151 µW/cm² = 1.51 W/m²
VIS Rep4 ( 350 nm - 700 nm)	176 µW/cm² = 1.76 W/m²
purple ( 380 nm - 420 nm)	18.2 µW/cm² = 0.182 W/m²
VIS ( 380 nm - 780 nm)	151 µW/cm² = 1.51 W/m²
VIS2 ( 400 nm - 680 nm)	145 µW/cm² = 1.45 W/m²
PAR ( 400 nm - 700 nm)	146 µW/cm² = 1.46 W/m²
tmp ( 400 nm - 1100 nm)	150 µW/cm² = 1.5 W/m²
blue ( 420 nm - 490 nm)	55.9 µW/cm² = 0.559 W/m²
green ( 490 nm - 575 nm)	36.6 µW/cm² = 0.366 W/m²
yellow ( 575 nm - 585 nm)	8.41 µW/cm² = 0.0841 W/m²
orange ( 585 nm - 650 nm)	26.3 µW/cm² = 0.263 W/m²
red ( 650 nm - 780 nm)	5.56 µW/cm² = 0.0556 W/m²
IR2 ( 655 nm - 685 nm)	1.23 µW/cm² = 0.0123 W/m²
IRA ( 700 nm - 1400 nm)	3.83 µW/cm² = 0.0383 W/m²
IRB ( 1400 nm - 3000 nm)	0 µW/cm² = 0 W/m²

Erythema	1.67 UV-Index
Pyrimidine dimerization of DNA	16.9 µW/cm²
Photoceratitis	2.67 µW/cm²
Photoconjunctivitis	0.0848 µW/cm²
DNA Damage	0.239
Vitamin D3	7.15 µW/cm²
Photosynthesis	105 µW/cm²
Luminosity	396 lx
Human L-Cone	59.2 µW/cm²
Human M-Cone	49.3 µW/cm²
Human S-Cone	49.9 µW/cm²
CIE X	60.8 µW/cm²
CIE Y	54.8 µW/cm²
CIE Z	89.8 µW/cm²
PAR PPFD	7.23 µmol/m²/s
Extinction preD3	48 e-3*m²/mol
Extinction Tachysterol	170 e-3*m²/mol
Exctincition PreD3	22900 m²/mol
Extinction Lumisterol	7.56 m²/mol
Exctincition Tachysterol	241000 m²/mol
Extinction 7DHC	7.03 m²/mol
L-Cone	49.3 µW/cm²
M-Cone	37 µW/cm²
S-Cone	94.6 µW/cm²
U-Cone	49.4 µW/cm²
UVR - ICNIRP 2004	1.36 Rel Biol Eff
Melatonin Supression	59.2 µW/cm²
Blue Light Hazard	57 µW/cm² (144 µW/cm² per 1000 lx)
CIE 174:2006 PreVit D3	7.9 µW/cm²
Lumen Reptil	495 "pseudo-lx"
Vitamin D3 Degradation	8.53 µW/cm²
Actinic UV	1.35 µW/cm² (34.2 mW/klm)
Exctincition Lumisterol	10900 m²/mol
Exctincition 7DHC	9020 m²/mol
Exctincition Toxisterols	3840 m²/mol
UV-Index2	1.63 UV-Index (285-400nm)

Solarmeter 6.2 (UVB, pre 2010)	52.2 µW/cm²
Solarmeter 6.5 (UV-Index, pre 2010)	2.07
Leybold UVB	37.6 µW/cm²
Leybold UVA	86.7 µW/cm²
Leybold UVC	0.00371 µW/cm²
DeltaOhm UVB	86.7 µW/cm²
DeltaOhm UVC	10.8 µW/cm²
Vernier UVB	13.1 µW/cm²
Vernier UVA	107 µW/cm²
Gröbel UVA	117 µW/cm²
Gröbel UVB	19 µW/cm²
Gröbel UVC	0.00168 µW/cm²
Luxmeter	406 lx
Solarmeter 6.4 (D3)	6.48 IU/min
UVX-31	93.4 µW/cm²
IL UVB	0.0218 µW/cm²
IL UVA	96.6 µW/cm²
Solarmeter 6.5 (UVI, post 2010)	1.71 UV-Index
Solarmeter 6.2 (UVB, post 2010)	34.8 µW/cm² (Solarmeter Ratio = 20.3)
Solarmeter AlGaN 6.5 UVI sensor	23.4 UV Index
GenUV 7.1 UV-Index	1.31 UV-Index
Solarmeter 10.0 (Global Power) (manuf.)	2.1 W/m²
Solarmeter 4.0 (UVA)	1.23 mW/cm²
LS122 (manuf.)	0.000505 W/m²
ISM400 (first guess)	0.954 W/m²
LS122 (assumption)	0.0432 W/m²
ISM400_new	0.726 W/m²
Solarmeter 10.0 (Global Power) (assumption)	1.6 W/m²