Rita - there is an advert for a very impressive "Ultra-violet lamp with magnifier" in this months International Hospital Equipment magazine. It has a pair of 4W UV and a pair of 4W white light tubes - each switchable, and a 3 times magnification lens (at 20cm focal length) that is 10 by 5cm. It can be floor, wall or bench mounted or handheld and the website address given is
www.spectroline.com if you would like to check the details and UK supplier info. Hope this helps.
