|
Tanning Lamps This is the forum to discuss everything about tanning lamps form low pressure to high pressure. |
| LinkBack | Thread Tools |
10-19-2009, 01:36 PM | #1 (permalink) |
A Little knowledge needed please Hi, at present we use 2 types of lamps in our vtu's, Titan Tri-tan 250w giving VUA of 29 with 2.4% UVB and Epcot leisure Plasma Trio giving VUA? WITH 3% UVB. again at 250w( all the lamps are made by cosmedico). Now another company(Sunquest) claim that their 200w lamps have 53UVA with 1.6%UVB. Now my question is,or questions in this case. Do people think that Sunquest's figures for their Lamps are full of ****. Is there an Industry standard for lamps?? The vtu's are Tansun Symphany's by the way. Thanks | |
10-19-2009, 02:23 PM | #2 (permalink) | |
Guest Join Date: Apr 29 2001 Location: Stewartsville, NJ Age: 55
Posts: 3,121
Rep Power: 0 | Re: A Little knowledge needed please Quote:
Powered @ 250w 29 with 2.4% UVB would be .696 mW/cm² UVB Powered @ 200w 53 with 1.6% UVB would be .898 mW/cm² UVB The second one would have more UVB and be stronger even though the percent be is lower (percent B rating is bull$h!t, it is for marketing. mW/cm² is what is important). Wattage does not make much difference here. Both wattages provide enough power to generate the projection of plenty of UVA. The second lamp has twice the browning power since the UVA is higher and the UVB is only a little stronger but both are not frying lamps . They are similar in the UVB range. The other lamp you gave without a UVA rating cannot be determined at all. Never go by percent UVB, it is misleading. See, the real way to measure output is in mW/cm². Now, let's say that I have a l.amp that puts out 25 mW/cm² A+B (total UV) and has an output of 1 mW/cm² B (UVB only) then the percent UVB is 1/25 = .04 x 100 = 4% UVB. Now we have another l.amp that has an output of 50 mW/cm² A+B (total UV) and has an output of 1 mW/cm² B (UVB only) then the percent B is 1/50 = .02 x 100 = 2% UVB. Which l.amp is stronger? Is it the 2% or the 4%? Well it is the 2% UVB because we have all of the facts and not just the marketing hype. The UVB output between both l.amps is EXACTLY THE SAME!!! Which is 1 mW/cm² B. The second l.amp however has twice the UVA which will tan much better. You will get much more browning power out of lamp 2 even though it calculates out to less "percent" UVB. Are you starting to see why this percent value is bull$h!t and misleading? Last edited by Brian Oshman; 10-19-2009 at 02:30 PM. | |
10-19-2009, 04:08 PM | #5 (permalink) |
Re: A Little knowledge needed please Also, sorry to a pain in the ***, but have been told in the past that most of the UVB can not penetrate glass? Does this also apply to the acrylics aswell. Not that it applies to these vtu's, we have grids on these, but just wondering about the beds when it comes to re-tubing them. Thanks for the info on the lamps, understand that now | |
10-19-2009, 06:02 PM | #7 (permalink) |
Team TanTalk Join Date: Aug 27 2002 Location: East Coast Age: 56
Posts: 2,888
Rep Power: 22 | Re: A Little knowledge needed please Acrylics are designed not to block UV rays. As they get older though they do become less transparent particularly the ones made in the US. Filter Glass is designed to block UV rays. Two completely different things. |
10-19-2009, 06:37 PM | #8 (permalink) | |
Join Date: Nov 13 2001 Location: MI
Posts: 861
Rep Power: 23 | Re: A Little knowledge needed please Hello Ireland, Quote:
I commend Cosmedico for at least showing their "outputs" where most lamp providers do not... but I wish they would convert to mW/cm² for an array at body position. Flux from a single lamp in a sphere means for say 100W input you get say 29W UV out. You need to beg, borrow, or steal some UV meters for total UV and UVB... or buy them at www.solarmeter.com models 5.0 and 6.0. Then you can see for yourself what outputs any lamps have. Regarding "glass" - the filter glass that is part of High Pressure facials or body lamps is special. It transmits most UVA and it absorbs some UVB to keep ratio "correct" for tanning while limiting burning. UVT acrylic over Low Pressure tubes transmits almost all UV when new... and starts blocking UVB when old (solarized). | |
Bookmarks |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
Thread Tools | |
| |
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
A Little Knowledge Can Kill You | eileen | The Benefits of UV Light | 1 | 08-19-2008 02:32 PM |
A QUIZ to test some of your knowledge. | eileen | General Tanning Industry Discussions | 16 | 07-30-2007 05:31 PM |
Deepen my knowledge... | MatrixMan | General Tanning Industry Discussions | 75 | 03-14-2006 09:57 PM |
GROW MY KNOWLEDGE PLEASE..... | suntanzbypru | General Tanning Industry Discussions | 14 | 02-08-2006 12:45 PM |
lotion knowledge | VAtanner | Tanning Salon Management | 14 | 08-28-2004 10:21 PM |