Reptile Lamp Database

Area (m²):1063 1.1946E-5
Illuminance (lux):1065 2.6507E2
Luminance (candela per m²):1067 2.6507E2
Luminous Flux (lumen):1064 3.1666E-3
Luminous intensity (candela):1066 3.1666E-3
Observer:1061 Photopic
Solid Angle (steradians):1062 1.0
Source:1060 FLMT09760

Device Source:1045 FLMT09760
Integration Begin:1046 270.00
Integration End:1047 800.00
Method:1048 Uses Simpson's Rule for integration.
Moles of Photons:1057 6.2716E-11
PAR uMoles/m²/sec:1059 4.7688E0
PAR uMoles:1058 3.5256E-5
Photons/cm²/sec:1055 5.1086E14
Total Photons:1056 3.7769E13
dBm:1053 -1.5436E1
eV:1054 1.1048E14
uJoule/cm²:1051 1.4818E2
uJoule:1049 1.7702E1
uWatt/cm²:1052 2.3943E2
uWatt:1050 2.8603E1

CCT:1086 8110K
CRI DC:1084 9.29E-3
CRI R01:1069 78.4 (8110K)
CRI R02:1070 75.8 (8110K)
CRI R03:1071 70.6 (8110K)
CRI R04:1072 77.8 (8110K)
CRI R05:1073 78.2 (8110K)
CRI R06:1074 72.5 (8110K)
CRI R07:1075 82.0 (8110K)
CRI R08:1076 75.4 (8110K)
CRI R09:1077 2.9 (8110K)
CRI R10:1078 38.9 (8110K)
CRI R11:1079 78.1 (8110K)
CRI R12:1080 52.5 (8110K)
CRI R13:1081 72.9 (8110K)
CRI R14:1082 82.2 (8110K)
CRI R15:1083 75.3 (8110K)
CRI Ra:1068 76.3 (8110K)
DC<5.4E-3:1085 false

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 ; 0.29 )	( 0.12 ; 0.28 )	( 0.12 ; 0.11 ; 0.25 )
CCT	8300 Kelvin	0 Kelvin	0 Kelvin
distance		0	0
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)	243 µW/cm² = 2.43 W/m²
UVC ( 0 nm - 280 nm)	0.474 µW/cm² = 0.00474 W/m²
non-terrestrial ( 0 nm - 290 nm)	4.55 µW/cm² = 0.0455 W/m²
total2 ( 250 nm - 880 nm)	243 µW/cm² = 2.43 W/m²
UVB (EU) ( 280 nm - 315 nm)	57.2 µW/cm² = 0.572 W/m²
UVB (US) ( 280 nm - 320 nm)	57.9 µW/cm² = 0.579 W/m²
UVA+B ( 280 nm - 380 nm)	59.9 µW/cm² = 0.599 W/m²
Solar UVB ( 290 nm - 315 nm)	53.2 µW/cm² = 0.532 W/m²
UVA D3 regulating ( 315 nm - 335 nm)	1.28 µW/cm² = 0.0128 W/m²
UVA (EU) ( 315 nm - 380 nm)	2.69 µW/cm² = 0.0269 W/m²
UVA2 (medical definition) ( 320 nm - 340 nm)	0.661 µW/cm² = 0.00661 W/m²
UVA (US) ( 320 nm - 380 nm)	2 µW/cm² = 0.02 W/m²
UVA1 (variant) ( 335 nm - 380 nm)	1.41 µW/cm² = 0.0141 W/m²
UVA1 (medical) ( 340 nm - 400 nm)	65.4 µW/cm² = 0.654 W/m²
vis. UVA ( 350 nm - 380 nm)	1.22 µW/cm² = 0.0122 W/m²
VIS Rep3 ( 350 nm - 600 nm)	165 µW/cm² = 1.65 W/m²
VIS Rep4 ( 350 nm - 700 nm)	182 µW/cm² = 1.82 W/m²
purple ( 380 nm - 420 nm)	94 µW/cm² = 0.94 W/m²
VIS ( 380 nm - 780 nm)	182 µW/cm² = 1.82 W/m²
VIS2 ( 400 nm - 680 nm)	115 µW/cm² = 1.15 W/m²
PAR ( 400 nm - 700 nm)	116 µW/cm² = 1.16 W/m²
tmp ( 400 nm - 1100 nm)	118 µW/cm² = 1.18 W/m²
blue ( 420 nm - 490 nm)	29.9 µW/cm² = 0.299 W/m²
green ( 490 nm - 575 nm)	30.7 µW/cm² = 0.307 W/m²
yellow ( 575 nm - 585 nm)	4.15 µW/cm² = 0.0415 W/m²
orange ( 585 nm - 650 nm)	17.5 µW/cm² = 0.175 W/m²
red ( 650 nm - 780 nm)	5.7 µW/cm² = 0.057 W/m²
IR2 ( 655 nm - 685 nm)	2.78 µW/cm² = 0.0278 W/m²
IRA ( 700 nm - 1400 nm)	2.12 µW/cm² = 0.0212 W/m²
IRB ( 1400 nm - 3000 nm)	0 µW/cm² = 0 W/m²

Erythema	17.1 UV-Index
Pyrimidine dimerization of DNA	31.7 µW/cm²
Photoceratitis	25.4 µW/cm²
Photoconjunctivitis	1.99 µW/cm²
DNA Damage	5.75
Vitamin D3	47.6 µW/cm²
Photosynthesis	78.7 µW/cm²
Luminosity	285 lx
Human L-Cone	42.1 µW/cm²
Human M-Cone	36.2 µW/cm²
Human S-Cone	31.7 µW/cm²
CIE X	39.8 µW/cm²
CIE Y	39.5 µW/cm²
CIE Z	55.3 µW/cm²
PAR PPFD	6.15 µmol/m²/s
Extinction preD3	176 e-3*m²/mol
Extinction Tachysterol	686 e-3*m²/mol
Exctincition PreD3	107000 m²/mol
Extinction Lumisterol	135 m²/mol
Exctincition Tachysterol	880000 m²/mol
Extinction 7DHC	186 m²/mol
L-Cone	34.8 µW/cm²
M-Cone	30.8 µW/cm²
S-Cone	71 µW/cm²
U-Cone	152 µW/cm²
UVR - ICNIRP 2004	22.1 Rel Biol Eff
Melatonin Supression	44.4 µW/cm²
Blue Light Hazard	38.8 µW/cm² (136 µW/cm² per 1000 lx)
CIE 174:2006 PreVit D3	49 µW/cm²
Lumen Reptil	569 "pseudo-lx"
Vitamin D3 Degradation	21.1 µW/cm²
Actinic UV	21.8 µW/cm² (766 mW/klm)
Exctincition Lumisterol	158000 m²/mol
Exctincition 7DHC	219000 m²/mol
Exctincition Toxisterols	7930 m²/mol
UV-Index2	16.6 UV-Index (285-400nm)

Solarmeter 6.2 (UVB, pre 2010)	76.3 µW/cm²
Solarmeter 6.5 (UV-Index, pre 2010)	14.4
Leybold UVB	48.7 µW/cm²
Leybold UVA	7.02 µW/cm²
Leybold UVC	0.339 µW/cm²
DeltaOhm UVB	44.1 µW/cm²
DeltaOhm UVC	12.5 µW/cm²
Vernier UVB	40.9 µW/cm²
Vernier UVA	3.88 µW/cm²
Gröbel UVA	3.84 µW/cm²
Gröbel UVB	52.6 µW/cm²
Gröbel UVC	0.4 µW/cm²
Luxmeter	297 lx
Solarmeter 6.4 (D3)	44.9 IU/min
UVX-31	46.8 µW/cm²
IL UVB	0.0383 µW/cm²
IL UVA	4.54 µW/cm²
Solarmeter 6.5 (UVI, post 2010)	8.7 UV-Index
Solarmeter 6.2 (UVB, post 2010)	30 µW/cm² (Solarmeter Ratio = 3.46)
Solarmeter AlGaN 6.5 UVI sensor	51.7 UV Index
GenUV 7.1 UV-Index	2.57 UV-Index
Solarmeter 10.0 (Global Power) (manuf.)	1.62 W/m²
Solarmeter 4.0 (UVA)	0.463 mW/cm²
LS122 (manuf.)	0.00123 W/m²
ISM400 (first guess)	0.754 W/m²
LS122 (assumption)	0.0317 W/m²
ISM400_new	0.567 W/m²
Solarmeter 10.0 (Global Power) (assumption)	1.26 W/m²