Russ... Nope. I've always been under the impression that extended exposure to black light could cause eye problems. Not sure though.
Russel Traher wrote: > > Doug, have you compared the UVB output of a zoomed 5.0 to a BL blacklight? > The NEC 'BL' type blacklights available in Australia put out more UVB when > compared to the zoomed bulbs and are quarter of the price. They don't > produce much light, but work great when used in conjunction with a bulb > that has a high CRI and high K. > > Russ > > ----- Original Message ----- > From: "Doug Johnston" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Saturday, 2 February 2002 11:37 > Subject: Re: [Gecko] UVB lighting > > > Josh... > > > > I agree with everything you said. However, the main problem I've had > > with the Reptisun 5.0 is the amount of light it produces. It does not > > generate the amount of lumens other sources do. They also don't create > > the color temps I want for my enclosures. I've always wanted a UVB bulb > > that also puts out a CRI of greater than 92 and has a color temp in the > > 5000K range. Because of that, I tend to use two bulbs whenever > > possible... one Reptisun 5.0 and another bulb with those other > > characteristics that create a blend of all the right light. Greg > > Christenson has always talked about that sort of thing, too, I believe. > > I generally use halogen lights as heat spots when possible to add some > > more of the whiter light. And, since the filament temps are higher on > > halogens, they can create some UVB as well (as long as there isn't a UV > > shield piece of glass blocking it). > > > > Josh Klavir wrote: > > > > > > Hello all, > > > > > > Thought I'd chime in on the UVB discussion. Would have contributed > earlier > > > but have been more than a bit under the weather. > > > Reptisun 5.0 bulbs will begin to degrade after about 4 months, luckily > this > > > is a slow process, but does change the depth of penetration of the UVB > > > wavelengths being emitted by the bulb. The concept is not one of having > a > > > 5.0 that penetrates 12" turn into a 2.0 that penetrates 12", but instead > a > > > 5.0 that penetrates 12" becomes a 5.0 that penetrates 2-3", after about > 9 > > > months. I guess if your animals are always basking directly under the > bulb, > > > you can get a longer life span out of the product. > > > Also important to note that a Reptisun 5.0 will continue to emit useful > > > amounts of UVA for months after it ceases to emit UVB. > > > UVA is used in depression therapy for humans, so when the UVB is over, > put > > > the tube in your kitchen or work shop for some "Happy Light". > Re-cycling > > > your older UVB bulbs for your non UVB requiring creatures can always be > done > > > too. > > > > > > Cheers, > > > Josh > > > > > > -----Original Message----- > > > From: Neal Grant [mailto:[EMAIL PROTECTED]] > > > Sent: Friday, February 01, 2002 3:54 PM > > > To: '[EMAIL PROTECTED]' > > > Subject: [Gecko] UVB lighting > > > > > > > > > > > > Hello again! > > > > > > Ok, so the general consensus is that after 6 to 9 months, you should > replace > > > UVB bulbs. > > > > > > Let's say I have a UVB 5.0.....after 9 months, could I replace it, and > then > > > treat it as though it was a UVB 2.0 for a few months? > > > > > > In other words, after they "expire" do they just put out less UVB, or do > > > they stop producing any useful UVB altogether? > > > > > > Thanks, and have a great weekend. > > > > > > Neal G. > > > _____ > > > > > > Do You Yahoo!? > > > Yahoo! <http://rd.yahoo.com/mail_us/tag/?http://auctions.yahoo.com> > > > Auctions Great stuff seeking new owners! Bid > > > <http://rd.yahoo.com/mail_us/tag/?http://auctions.yahoo.com> now! > > > > > > > ########################################################################### > > > THE GLOBAL GECKO ASSOCIATION LISTSERV > > > WebSite: www.gekkota.com Archive: > [EMAIL PROTECTED]/ > > > The GGA takes no responsibility for the contents of these postings. > > > > ########################################################################### > > > > -- > > Doug Johnston > > > > -- Doug Johnston ---------------------------------------------------- Sign Up for NetZero Platinum Today Only $9.95 per month! http://my.netzero.net/s/signup?r=platinum&refcd=PT97
