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Cphill58 View Profile |
New test on 10.0 CFL
I am hoping that if I post the link here you can access the information and read it for yourself ...if not I can test my post while in preview and determine what I need to do. This information should shed a new understanding and a positive future for the previous bad reputation of the compact lights that caused so much trouble. Keep in mind the specific model numbers she lists. The new Repti sun 10.0 compacts are no longer emitting dangerous wave lengths of UVB ...or any UVC ... keep in mind the new instructions need to be followed ...in other words minimum distances are never to be disregarded ...especially during the 105 hr burn in of a new lamp about 10 days @ 10 hrs per day. Ok , I hope this link works....intense reading for the sceintific mind ... but really easy to understand .. Link Upon preview the link works.... Cp |
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| 10/01/09 12:23pm |
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Cphill58 View Profile |
Message To: Cphill58 In reference to Message Id: 2079098 New test on 10.0 CFL
copy and paste this into your browser http://f1.grp.yahoofs.com/v1/8MPESuHdhsoktljwihPBiGdw9AgOyHWLpucNuMC0j4_UDPxzDzlq50vicYQ3rJXbeluwRaJJgiHd-6YsuSnlMIgSTuco8SL8JQB1jyyUNa5haF4n1WE/ZooMedCompactLampsSept09.pdf |
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| 10/01/09 12:34pm |
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Cphill58 View Profile |
Message To: Cphill58 In reference to Message Id: 2079101 New test on 10.0 CFL
TAKE OUT THE >>>>>> If this doen’t work ....I give up Cp |
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| 10/01/09 12:59pm |
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Clouddancer22 View Profile |
Message To: Cphill58 In reference to Message Id: 2079106 New test on 10.0 CFL
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| 10/02/09 09:14pm |
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Cphill58 View Profile |
Message To: Clouddancer22 In reference to Message Id: 2079651 New test on 10.0 CFL
Doug ...cmon man ...it’s a UVB group ... |
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| 10/04/09 02:56am |
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Predator999 View Profile |
Message To: Cphill58 In reference to Message Id: 2080089 New test on 10.0 CFL
thanks |
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| 10/04/09 10:17am |
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Cphill58 View Profile |
Message To: Predator999 In reference to Message Id: 2080142 New test on 10.0 CFL
Preliminary Test Results: New Generation of ZooMed Reptisun 10.0 and 5.0 Compact Lamps Frances M. Baines Introduction/ product description Three new ZooMed Reptisun 10.0 Compact Fluorescent lamps and three new ZooMed Reptisun 5.0 Compact Fluorescent lamps were received on 14th September from Peregrine Livefoods Ltd., the main UK distributors for ZooMed products. These can be distinguished from old stock by the new instruction sheet in each box. These sheets have been redesigned, and supply new positioning instructions (minimum distance recommendations relevant to the different output from the new lamps. The quickest way to identify these is to look for images of, and advertising for the ZooMed Deep Dome Lamp Fixture on the leaflet. This product does not feature on the older leaflets. Peregrine Livefoods advise that they still have stocks of the older lamps, so these new ones are not yet on general sale in the UK. However, we understand that the new lamps are already widely on sale in the USA. Test Results The six lamps were given the following identification numbers: Lamps 1 – 3: ZooMed Reptisun 10.0 lamps BZC17, BZC18, BZC19 Lamps 4 – 6: ZooMed Reptisun 5.0 lamps BZC20, BZC21, BZC22 The compact lamps were mounted vertically in a standard ceramic lampholder with no reflector. Recordings were all taken from the side of the lamp, at right angles to its axis, with distance measurements taken from the closest part of the lamp surface to the sensor. First meter recordings were taken after 30 minutes warmup and spectrograms were taken after 1 hour of use. The lamps are currently being switched on for 15 hours each day until a “burning in” period of approximately 105 hours has been completed. A second set of readings will then be taken. Recordings included: · Spectrograms (Ocean Optics Inc. USB2000+ spectral radiometer with a UVB compatible fibreoptic sensor with cosine adaptor) · Total UVB 280 320nm (Solarmeter 6.2 broadband UVB meter) · UV Index (UVB in the biologically active range of wavelengths) (Solarmeter 6.5 UV Index meter) · UVC (Solarmeter 8.0 broadband UVC meter) · Visible light output (SkyTronic LX101 model 600.620 digital lux meter) · Electrical consumption (Prodigit power monitor model 2000MUK) Total UV VIS output The full UVVIS spectrum of each of these six lamps, recorded at 10cm, after 1 hour of use, is shown in Figure 1. The contours of the spectra of these four lamps are almost identical, suggesting that the same phosphors are used in both the 10.0 and 5.0 lamps, but in slightly different proportions. The 10.0 lamps would appear to have a higher concentration of the phosphors emitting in the UV wavelengths but both have very similar amounts of the phosphors producing visible light. GRAPH WOULD GO HERE ...LOL The threshold wavelength is about 295nm, which is within the range for natural sunlight, and the fairly steady increase in intensity with increasing wavelength in the UVB region also resembles that seen in the solar spectrum. There is no nonterrestrial UVB or UVC. Light from these lamps, if positioned as a suitable basking distance, should enable vitamin D3 synthesis without undue concern about the hazards associated with nonterrestrial UVB. Although there is more shortwavelength UVA than in some other reptile UVB lamps, there is little UVA in the longer wavelengths which reptiles can see (above 350360nm). The light at 365nm – from the mercury spike – is the only part of the UV spectrum that will look bright to a reptile. This is, however, a common feature with reptile lamps. Additional information obtained from the spectral data Colour analysis gave the results shown to the left (Figure 3) for the Colour Rendering Index (CRI Ra) and Corrected Colour Temperature (CCT) for each lamp. The colour rendering is very good for a UVB emitting lamp, owing to the use of a phosphor blend with emissions across the full visible spectrum. The colour temperature of all the lamps is also very good, being only slightly higher than that of daylight (which is usually considered to be about 6,500K). These lamps would typically be combined with incandescent basking lamps, which normally have low colour temperatures around 2,500 – 3,500K. These would balance the light by adding more yellow, orange and red to the spectrum. Total UVB 280 320nm Recordings of the output of the six lamps were made with the Solarmeter 6.2 broadband UVB radiometer. The total UVB output, after 30 minutes of use, from the Reptisun 10.0 and 5.0 lamps are shown in Figures 4a and 4b respectively. Figure 4c gives the data in table form, for all lamps from 2in to 12in distance. The total UVB output from the compact lamps is high at very close range, but falls rapidly with distance. This is typical of compact lamps and is the reason why it is important to prevent reptiles from gaining very close access to any highUVB compact lamp. Fig. 3. Colour Analysis CRI Ra CCT Reptisun 10.0 (BZC17) at 1 hr 88.2 7266K Reptisun 10.0 (BZC18) at 1 hr 88.1 7352K Reptisun 10.0 (BZC19) at 1 hr 88.4 6910K Reptisun 5.0 (BZC20) at 1hr 88.1 6807K Reptisun 5.0 (BZC21) at 1 hr 87.8 6842K Reptisun 5.0 (BZC22) at 1hr 87.9 6887K There is always individual variation between lamps. The meter readings confirm the spectral data. Both show that the output from the10.0 lamps varied considerably, much more so than did the output from the 5.0 lamps. Lamp BZC18, for example, has less than 80% of the output of lamp BZC19. However, the burning in process often largely eliminates early differences between lamps in the same batch, so conclusions cannot be drawn at this stage. MORE GRAPHS... The output from the 10.0 lamps is moderate at reasonable basking distances. At 8 to 12 inches distance from the lamps, the UVI was between 0.7 and 2.0, which are typical readings found outdoors in daylight in varying degrees of shade under trees, and under overcast skies. When brand new, the output of the strongest lamp tested at 6 inches distance was 3.5, a reading typical of full early morning sunlight. The output from the 5.0 lamps is fairly low at reasonable basking distances. A UVI between 0.3 and 0.7 – the output from these lamps between 8 and 12 inches distance – is typical of fairly dense shade under trees. Such readings are also fairly typical of “5%” UVB linear tubes at similar distances. A UV gradient up to a maximum of around UVI 2.0 – 3.0 – obtained at 6 inches from the 10.0 compact lamps – would not seem to pose any risk of overexposure to a basking reptile able to move in and out of the beam at will, although closer than this, the intensity rises sharply to levels which may not be safe if shone directly into the eyes. The sun is usually high in the sky and too bright to look at. Fluorescent lamps do not have anything approaching this level of brilliance; moreover, their warmth is attractive. To avoid excessive exposure, these lamps should always be mounted directly above the basking spot, rather than to one side, at an angle or at a lower level, and the reptile should not be able to climb closer to the lamp. If a reflective fixture such as a dome reflector is used, the figures for a suitable minimum basking distance may be increased. (No tests have yet been conducted on these lamps; this will be done after they have been burned in.) UVC The Solarmeter 8.0 broadband UVC radiometer measuring the UVC range (240 – 280nm), with filtering for extraneous UVA and UVB, gave zero readings for UVC for all six brand new lamps at all distances from 0.1” from the lamp surface (the closest measurement possible). Visible light output Recordings with a lux meter (SkyTronic LX101 model 600.620 digital lux meter) (Figures 7a , 7b and 7c) show that despite presenting as very bright objects to the eye, the amount of illumination they produce falls very rapidly with distance; this is a feature typical of all compact lamps. Even though they are almost twice as bright as typical UVB linear tubes at 12 inches distance, (about 700 900 lux as compared to 450 – 550 lux from a tube) the low levels of light produced by the compact lamps are not likely to provide sufficient illumination for most sunloving reptiles, at a basking spot. Neither do compact lamps produce sufficient heat for basking. A bright “white” incandescent lamp such as a tungsten or halogen flood lamp placed close to the compact lamp, above the basking spot, would in most cases act as an ideal heat source for basking whilst providing extra visible light and simultaneously deterring the reptile from staring at the UVB lamp. A typical household flood lamp may give between 3,000 15,000 lux at 12 inches distance. Conclusion These “new generation” lamps appear to be, in my opinion, a very significant improvement upon the Reptisun compact lamps that have been on sale until now. The spectrum has no nonterrestrial UVB (which was present, and was a cause for concern, in the older versions) and in the UVB range the spectrum is more like natural sunlight, with a threshold wavelength of around 295nm and a higher proportion of shortwavelength UVA, as well. The UVB irradiance of the 10.0 lamps at suitable basking distances is moderate (UV Index levels at 8 12” resembling those found in the shade on a sunny day). The combination of a moderate output and a UVB spectrum similar to sunlight suggests that when the lamps are used responsibly at suitable basking distances, they should promote the normal synthesis of vitamin D3 and they are unlikely to be harmful to eyes or skin. The UVB irradiance of the 5.0 lamps is considerably lower, but these should likewise promote the synthesis of vitamin D3 in the skin of species with low UVB requirements. These lamps produce much more visible light, and with better colour rendering, than previous versions. Like all UVB fluorescent lamps, however, these do not produce a sufficiently intense or balanced full spectrum light to provide “daylight” illumination and should be used together with incandescent lamps or metal halide lamps, over the basking area. The initial decay during “burning in” has not yet been measured, and it will also be necessary to conduct long term trials on these lamps to obtain some idea of their longevity. Author’s note I would like to thank all those involved in sending me these lamps for evaluation. Please note, my tests are not conducted in laboratorycontrolled conditions. I believe this equipment and these methods are producing reliable and repeatable results which have scientific validity, but I would encourage professional testing of all these lamps to confirm my findings. Individual lamps will vary in their UVB output, depending upon their original specifications and upon their age, fluctuations in the electrical supply, external temperature and doubtless, other factors. Only a very small number of lamps have been tested. To be certain that these were typical of their kind would require a much larger sample to be tested. Because there will inevitably be differences between individual lamps, the charts for the lamps tested in this report should not be relied upon as an accurate guide to the exact output of all lamps of this type. Comments in this report reflect my personal opinions only. 21st September 2009 Frances M. Baines © 2009 UVGuideUK |
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| 10/04/09 11:50am |
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Dragon Lover View Profile |
Message To: Cphill58 In reference to Message Id: 2080170 New test on 10.0 CFL
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| 10/04/09 02:14pm |
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Cphill58 View Profile |
Message To: Dragon Lover In reference to Message Id: 2080213 New test on 10.0 CFL
http://groups.******yahoo.com/group/UVB_Meter_Owners/ Remove the stars ****** |
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| 10/04/09 02:31pm |
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Red Ink AUS View Profile |
Message To: Cphill58 In reference to Message Id: 2080217 New test on 10.0 CFL
Very interesting, since i can not see the graphs i can only make assumptions of the number datas. It looks good. Interestingly though i got the same results when i ran Reptiglo 10.0 compacts under a spectrophotometer loking for UVC spikes (which was the speculated cause of photo-kerato conjunctivitis). My results showed 0.0 UVC wavelength output, lowest was 320nm at 18% within a 2 inch distance but 0.0 at 10 inches or even at 5 inches. I am intrigued by this point: Quote: Recordings with a lux meter (SkyTronic LX101 model 600.620 digital lux meter) (Figures 7a , 7b and 7c) show that despite presenting as very bright objects to the eye, the amount of illumination they produce falls very rapidly with distance; this is a feature typical of all compact lamps. Even though they are almost twice as bright as typical UVB linear tubes at 12 inches distance, (about 700 900 lux as compared to 450 – 550 lux from a tube) the low levels of light produced by the compact lamps are not likely to provide sufficient illumination for most sunloving reptiles, at a basking spot. Neither do compact lamps produce sufficient heat for basking.
That is a very high lux reading but a assume that it was read as a whole accross the spectrum but not at individual wavelengths or colours. I have always suspected it was somewhere within the visible part of the spectrum that caused the eye problems and not down at the UV range. At that output and intensity it is sun glare teritory when compared to human tolerances. Cheers, Francis |
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| 10/04/09 06:47pm |
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Cphill58 View Profile |
Message To: Red Ink AUS In reference to Message Id: 2080284 New test on 10.0 CFL
The graph showed a curve from a very close distance of less than a inch or 2 ... to the normal 12" and beyond ... yes it seems that the whole spectrum of light as a general was measyred for LUX... In the text it compares the LUX of the CFL to a regular incandescent flood light ... that being even higher 3000-12,000 lux... I encourage you to become a member of this group , it is free, and they cover vast amounts of layman and professional studies. Ranging from someone like me just fooling around with a UVB meter and posting ..to the likes of you and Frances Baines who know specifically what is going on and what causes harm or creates benificial light... The site is free to join and e mail notifications alert you automatically when a post is up. Tons of archives to go over !! UVB_Meter_Owners@yahoo*****groups.com Remove these ***** to get the link Cp |
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| 10/05/09 01:48pm |
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Cphill58 View Profile |
Message To: Cphill58 In reference to Message Id: 2080505 New test on 10.0 CFL
I made some errors in the link ...this is the sign in / register page.. The Files section of this group is only viewable by members, but once you’ve joined, the permanent link to any file is always: http://pets.groups.*****yahoo.com/group/UVB_Meter_Owners/files/ The exact file we are speaking of is here: http://pets.groups.*****yahoo.com/group/UVB_Meter_Owners/files/ZooMedCompactLampsSept09.pdf I get tired of saying remove the stars***** Cheers |
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| 10/05/09 02:11pm |
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