Reptile Lamp Database

Area (m²):1063 1.1946E-5
Illuminance (lux):1065 5.3638E2
Luminance (candela per m²):1067 5.3638E2
Luminous Flux (lumen):1064 6.4076E-3
Luminous intensity (candela):1066 6.4076E-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 9.3680E-11
PAR uMoles/m²/sec:1059 9.1025E0
PAR uMoles:1058 6.7296E-5
Photons/cm²/sec:1055 7.6308E14
Total Photons:1056 5.6416E13
dBm:1053 -1.4072E1
eV:1054 1.5125E14
uJoule/cm²:1051 2.0286E2
uJoule:1049 2.4234E1
uWatt/cm²:1052 3.2778E2
uWatt:1050 3.9157E1

CCT:1086 8454K
CRI DC:1084 1.05E-2
CRI R01:1069 78.8 (8454K)
CRI R02:1070 75.9 (8454K)
CRI R03:1071 69.3 (8454K)
CRI R04:1072 78.7 (8454K)
CRI R05:1073 78.4 (8454K)
CRI R06:1074 69.7 (8454K)
CRI R07:1075 81.4 (8454K)
CRI R08:1076 75.3 (8454K)
CRI R09:1077 6.0 (8454K)
CRI R10:1078 38.2 (8454K)
CRI R11:1079 78.7 (8454K)
CRI R12:1080 48.3 (8454K)
CRI R13:1081 74.7 (8454K)
CRI R14:1082 81.7 (8454K)
CRI R15:1083 77.1 (8454K)
CRI Ra:1068 75.9 (8454K)
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 )	( 0.16 ; 0.34 )	( 0.16 ; 0.14 ; 0.29 )
CCT	8400 Kelvin	0 Kelvin	24000 Kelvin
distance		0	0.065
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)	331 µW/cm² = 3.31 W/m²
UVC ( 0 nm - 280 nm)	0.422 µW/cm² = 0.00422 W/m²
non-terrestrial ( 0 nm - 290 nm)	4.09 µW/cm² = 0.0409 W/m²
total2 ( 250 nm - 880 nm)	331 µW/cm² = 3.31 W/m²
UVB (EU) ( 280 nm - 315 nm)	31 µW/cm² = 0.31 W/m²
UVB (US) ( 280 nm - 320 nm)	31.3 µW/cm² = 0.313 W/m²
UVA+B ( 280 nm - 380 nm)	33.5 µW/cm² = 0.335 W/m²
Solar UVB ( 290 nm - 315 nm)	27.3 µW/cm² = 0.273 W/m²
UVA D3 regulating ( 315 nm - 335 nm)	0.782 µW/cm² = 0.00782 W/m²
UVA (EU) ( 315 nm - 380 nm)	2.52 µW/cm² = 0.0252 W/m²
UVA2 (medical definition) ( 320 nm - 340 nm)	0.535 µW/cm² = 0.00535 W/m²
UVA (US) ( 320 nm - 380 nm)	2.19 µW/cm² = 0.0219 W/m²
UVA1 (variant) ( 335 nm - 380 nm)	1.73 µW/cm² = 0.0173 W/m²
UVA1 (medical) ( 340 nm - 400 nm)	77.8 µW/cm² = 0.778 W/m²
vis. UVA ( 350 nm - 380 nm)	1.53 µW/cm² = 0.0153 W/m²
VIS Rep3 ( 350 nm - 600 nm)	260 µW/cm² = 2.6 W/m²
VIS Rep4 ( 350 nm - 700 nm)	292 µW/cm² = 2.92 W/m²
purple ( 380 nm - 420 nm)	114 µW/cm² = 1.14 W/m²
VIS ( 380 nm - 780 nm)	294 µW/cm² = 2.94 W/m²
VIS2 ( 400 nm - 680 nm)	213 µW/cm² = 2.13 W/m²
PAR ( 400 nm - 700 nm)	215 µW/cm² = 2.15 W/m²
tmp ( 400 nm - 1100 nm)	221 µW/cm² = 2.21 W/m²
blue ( 420 nm - 490 nm)	63.4 µW/cm² = 0.634 W/m²
green ( 490 nm - 575 nm)	61.4 µW/cm² = 0.614 W/m²
yellow ( 575 nm - 585 nm)	8.34 µW/cm² = 0.0834 W/m²
orange ( 585 nm - 650 nm)	35.3 µW/cm² = 0.353 W/m²
red ( 650 nm - 780 nm)	11.7 µW/cm² = 0.117 W/m²
IR2 ( 655 nm - 685 nm)	5.6 µW/cm² = 0.056 W/m²
IRA ( 700 nm - 1400 nm)	6.23 µW/cm² = 0.0623 W/m²
IRB ( 1400 nm - 3000 nm)	0 µW/cm² = 0 W/m²

Erythema	10.3 UV-Index
Pyrimidine dimerization of DNA	15.1 µW/cm²
Photoceratitis	16 µW/cm²
Photoconjunctivitis	1.53 µW/cm²
DNA Damage	4.15
Vitamin D3	26.9 µW/cm²
Photosynthesis	147 µW/cm²
Luminosity	571 lx
Human L-Cone	84.5 µW/cm²
Human M-Cone	72.7 µW/cm²
Human S-Cone	62.6 µW/cm²
CIE X	80.2 µW/cm²
CIE Y	79.3 µW/cm²
CIE Z	112 µW/cm²
PAR PPFD	10.7 µmol/m²/s
Extinction preD3	105 e-3*m²/mol
Extinction Tachysterol	417 e-3*m²/mol
Exctincition PreD3	68000 m²/mol
Extinction Lumisterol	88.8 m²/mol
Exctincition Tachysterol	537000 m²/mol
Extinction 7DHC	124 m²/mol
L-Cone	69.9 µW/cm²
M-Cone	61.3 µW/cm²
S-Cone	128 µW/cm²
U-Cone	185 µW/cm²
UVR - ICNIRP 2004	14 Rel Biol Eff
Melatonin Supression	82.3 µW/cm²
Blue Light Hazard	72.2 µW/cm² (126 µW/cm² per 1000 lx)
CIE 174:2006 PreVit D3	27.4 µW/cm²
Lumen Reptil	907 "pseudo-lx"
Vitamin D3 Degradation	12.4 µW/cm²
Actinic UV	13.9 µW/cm² (243 mW/klm)
Exctincition Lumisterol	103000 m²/mol
Exctincition 7DHC	144000 m²/mol
Exctincition Toxisterols	4930 m²/mol
UV-Index2	9.87 UV-Index (285-400nm)

Solarmeter 6.2 (UVB, pre 2010)	43 µW/cm²
Solarmeter 6.5 (UV-Index, pre 2010)	8.35
Leybold UVB	24.6 µW/cm²
Leybold UVA	8.38 µW/cm²
Leybold UVC	0.279 µW/cm²
DeltaOhm UVB	23.6 µW/cm²
DeltaOhm UVC	7.26 µW/cm²
Vernier UVB	21.7 µW/cm²
Vernier UVA	2.27 µW/cm²
Gröbel UVA	2.9 µW/cm²
Gröbel UVB	29.2 µW/cm²
Gröbel UVC	0.393 µW/cm²
Luxmeter	595 lx
Solarmeter 6.4 (D3)	26.1 IU/min
UVX-31	24 µW/cm²
IL UVB	0.0216 µW/cm²
IL UVA	5.07 µW/cm²
Solarmeter 6.5 (UVI, post 2010)	4.87 UV-Index
Solarmeter 6.2 (UVB, post 2010)	16.2 µW/cm² (Solarmeter Ratio = 3.32)
Solarmeter AlGaN 6.5 UVI sensor	27.6 UV Index
GenUV 7.1 UV-Index	1.41 UV-Index
Solarmeter 10.0 (Global Power) (manuf.)	2.62 W/m²
Solarmeter 4.0 (UVA)	0.544 mW/cm²
LS122 (manuf.)	0.00822 W/m²
ISM400 (first guess)	1.46 W/m²
LS122 (assumption)	0.0685 W/m²
ISM400_new	1.14 W/m²
Solarmeter 10.0 (Global Power) (assumption)	2.24 W/m²