Regardless, Tom...you are always guessing.by the way, that comment was not directed at you. But it is now.... You really do not have all the facts. To jump down my throat about a comment I've made? Anyways. How do we know for sure that it that one specific bulb? We dont..i want proof. Why are they still selling them? Why are people still buying them?Tom said:mainey34 said:We cant always rely on the fact of guessing.
I am not guessing. I and many others have seen this first hand. I do not wish to discourage more research and understanding about this problem, but I don't expect much to come of someone buying a bulb and measuring the UV output. This has been done. We have several graphs on a thread somewhere here that show the light output of many individual bulbs.
Not all of these bulbs cause the problem. I have seen many in use that did not seem to hurt a thing in seemingly similar circumstances to the bulbs that DID cause harm. The only way to really test this would be to have a light meter or several meters with you at the time that you stumbled upon one of these cases. You would have to measure THAT light, in THAT enclosure on THAT day to get meaningful readings and discover what might be going on that is causing the eye damage. It has been suggested that quality control and/or manufacturing tolerances in the bulb factories might be to blame for the inconsistencies, but again, I don't need to know what a bullet is made of, to know that it will hurt you if it strikes you at 3000 feet per second. Whether it is solid copper, or copper coated lead, makes no difference to the recipient. If someone else wants to know what the bullet was made of, that is fine with me. I am still going to recommend that people don't stand in front of it.
It might not even be UV. It might be light intensity. It might be a behavioral issue that happens under some of these lights and not others. To deny that there is a problem because we do not know EXACTLY what the problem is would be foolish. If we knew exactly what the problem was, it wouldn't happen. Because it DOES happen means there IS a problem at least SOME of the time.