Reptile Lamp Database

CCT:1197 5419K
CRI DC:1195 1.70E-2
CRI R01:1180 81.1 (5419K)
CRI R02:1181 34.8 (5419K)
CRI R03:1182 -9.6 (5419K)
CRI R04:1183 -90.6 (5419K)
CRI R05:1184 -84.9 (5419K)
CRI R06:1185 -66.8 (5419K)
CRI R07:1186 17.1 (5419K)
CRI R08:1187 66.8 (5419K)
CRI R09:1188 -141.4 (5419K)
CRI R10:1189 46.3 (5419K)
CRI R11:1190 -95.4 (5419K)
CRI R12:1191 -31.7 (5419K)
CRI R13:1192 32.0 (5419K)
CRI R14:1193 25.8 (5419K)
CRI R15:1194 82.1 (5419K)
CRI Ra:1179 -6.5 (5419K)
DC<5.4E-3:1196 false

Device Source:1156 FLMT09760
Integration Begin:1157 270.00
Integration End:1158 800.00
Method:1159 Uses Simpson's Rule for integration.
Moles of Photons:1168 1.3666E-11
PAR uMoles/m²/sec:1170 1.6686E2
PAR uMoles:1169 9.0097E-6
Photons/cm²/sec:1166 1.5242E16
Total Photons:1167 8.2298E12
dBm:1164 -1.5556E0
eV:1165 1.9718E13
uJoule/cm²:1162 2.6446E1
uJoule:1160 3.1592E0
uWatt/cm²:1163 5.8508E3
uWatt:1161 6.9894E2
Area (m²):1174 1.1946E-5
Illuminance (lux):1176 1.3515E4
Luminance (candela per m²):1178 1.3515E4
Luminous Flux (lumen):1175 1.6145E-1
Luminous intensity (candela):1177 1.6145E-1
Observer:1172 Photopic
Solid Angle (steradians):1173 1.0
Source:1171 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	( 0.34 ; 0.39 )	( 0.15 ; 0.37 )	( 0.28 ; 0.11 ; 0.27 )
CCT	5400 Kelvin	0 Kelvin	6900 Kelvin
distance		0	0.16
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)	6730 µW/cm² = 67.3 W/m²
UVC ( 0 nm - 280 nm)	3.24 µW/cm² = 0.0324 W/m²
non-terrestrial ( 0 nm - 290 nm)	6.81 µW/cm² = 0.0681 W/m²
total2 ( 250 nm - 880 nm)	6640 µW/cm² = 66.4 W/m²
UVB (EU) ( 280 nm - 315 nm)	146 µW/cm² = 1.46 W/m²
UVB (US) ( 280 nm - 320 nm)	167 µW/cm² = 1.67 W/m²
UVA+B ( 280 nm - 380 nm)	1300 µW/cm² = 13 W/m²
Solar UVB ( 290 nm - 315 nm)	143 µW/cm² = 1.43 W/m²
UVA D3 regulating ( 315 nm - 335 nm)	114 µW/cm² = 1.14 W/m²
UVA (EU) ( 315 nm - 380 nm)	1150 µW/cm² = 11.5 W/m²
UVA2 (medical definition) ( 320 nm - 340 nm)	128 µW/cm² = 1.28 W/m²
UVA (US) ( 320 nm - 380 nm)	1130 µW/cm² = 11.3 W/m²
UVA1 (variant) ( 335 nm - 380 nm)	1040 µW/cm² = 10.4 W/m²
UVA1 (medical) ( 340 nm - 400 nm)	1060 µW/cm² = 10.6 W/m²
vis. UVA ( 350 nm - 380 nm)	959 µW/cm² = 9.59 W/m²
VIS Rep3 ( 350 nm - 600 nm)	4300 µW/cm² = 43 W/m²
VIS Rep4 ( 350 nm - 700 nm)	4790 µW/cm² = 47.9 W/m²
purple ( 380 nm - 420 nm)	445 µW/cm² = 4.45 W/m²
VIS ( 380 nm - 780 nm)	4400 µW/cm² = 44 W/m²
VIS2 ( 400 nm - 680 nm)	3650 µW/cm² = 36.5 W/m²
PAR ( 400 nm - 700 nm)	3780 µW/cm² = 37.8 W/m²
tmp ( 400 nm - 1100 nm)	5370 µW/cm² = 53.7 W/m²
blue ( 420 nm - 490 nm)	834 µW/cm² = 8.34 W/m²
green ( 490 nm - 575 nm)	1170 µW/cm² = 11.7 W/m²
yellow ( 575 nm - 585 nm)	822 µW/cm² = 8.22 W/m²
orange ( 585 nm - 650 nm)	286 µW/cm² = 2.86 W/m²
red ( 650 nm - 780 nm)	850 µW/cm² = 8.5 W/m²
IR2 ( 655 nm - 685 nm)	159 µW/cm² = 1.59 W/m²
IRA ( 700 nm - 1400 nm)	1590 µW/cm² = 15.9 W/m²
IRB ( 1400 nm - 3000 nm)	0 µW/cm² = 0 W/m²

Erythema	10.5 UV-Index
Pyrimidine dimerization of DNA	60.4 µW/cm²
Photoceratitis	16.7 µW/cm²
Photoconjunctivitis	2.92 µW/cm²
DNA Damage	5.15
Vitamin D3	34.4 µW/cm²
Photosynthesis	2430 µW/cm²
Luminosity	13900 lx
Human L-Cone	2060 µW/cm²
Human M-Cone	1770 µW/cm²
Human S-Cone	814 µW/cm²
CIE X	1720 µW/cm²
CIE Y	1980 µW/cm²
CIE Z	1430 µW/cm²
PAR PPFD	192 µmol/m²/s
Extinction preD3	223 e-3*m²/mol
Extinction Tachysterol	768 e-3*m²/mol
Exctincition PreD3	124000 m²/mol
Extinction Lumisterol	83.9 m²/mol
Exctincition Tachysterol	1020000 m²/mol
Extinction 7DHC	99.9 m²/mol
L-Cone	1760 µW/cm²
M-Cone	660 µW/cm²
S-Cone	1660 µW/cm²
U-Cone	2140 µW/cm²
UVR - ICNIRP 2004	12.9 Rel Biol Eff
Melatonin Supression	942 µW/cm²
Blue Light Hazard	939 µW/cm² (67.5 µW/cm² per 1000 lx)
CIE 174:2006 PreVit D3	35.9 µW/cm²
Lumen Reptil	13400 "pseudo-lx"
Vitamin D3 Degradation	35.1 µW/cm²
Actinic UV	12.6 µW/cm² (9.09 mW/klm)
Exctincition Lumisterol	105000 m²/mol
Exctincition 7DHC	117000 m²/mol
Exctincition Toxisterols	15000 m²/mol
UV-Index2	8.43 UV-Index (285-400nm)

Solarmeter 6.2 (UVB, pre 2010)	185 µW/cm²
Solarmeter 6.5 (UV-Index, pre 2010)	10.7
Leybold UVB	136 µW/cm²
Leybold UVA	785 µW/cm²
Leybold UVC	1.06 µW/cm²
DeltaOhm UVB	228 µW/cm²
DeltaOhm UVC	32.5 µW/cm²
Vernier UVB	52 µW/cm²
Vernier UVA	500 µW/cm²
Gröbel UVA	988 µW/cm²
Gröbel UVB	79.7 µW/cm²
Gröbel UVC	1.79 µW/cm²
Luxmeter	14900 lx
Solarmeter 6.4 (D3)	33.4 IU/min
UVX-31	275 µW/cm²
IL UVB	0.0763 µW/cm²
IL UVA	1030 µW/cm²
Solarmeter 6.5 (UVI, post 2010)	7.76 UV-Index
Solarmeter 6.2 (UVB, post 2010)	104 µW/cm² (Solarmeter Ratio = 13.5)
Solarmeter AlGaN 6.5 UVI sensor	103 UV Index
GenUV 7.1 UV-Index	5.56 UV-Index
Solarmeter 10.0 (Global Power) (manuf.)	70.6 W/m²
Solarmeter 4.0 (UVA)	13.9 mW/cm²
LS122 (manuf.)	2.19 W/m²
ISM400 (first guess)	59.8 W/m²
LS122 (assumption)	3.8 W/m²
ISM400_new	57.7 W/m²
Solarmeter 10.0 (Global Power) (assumption)	67 W/m²