You need to know whether it is longwave or shortwave UV. Just a guess: The unprotected bulb suggests to me that it is probably longwave (safer for the eyes), which might help for some purposes such as detecting paper repairs, but would not work well for US tagging which requires shortwave UV.
That answer is correct. Tagging needs to be checked with a much stronger light, especially if you try to find varieties. For the much wanted "tagging missing" or "untagged" varieties ideally a 10 watt or stronger unit is needed.
Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Stamp Community assumes no liability for errors. Copyright 2005 - 2026 Stamp Community Family - All rights reserved worldwide. Use of any images or content on this website without prior written permission of Stamp Community or the original lender is strictly prohibited. Privacy Policy / Terms of UseAdvertise Here
Posted 04/24/2018 11:33 am
