Rated 4.5 out of 5 by 2
Rated 5 out of 5 by ClosetCollectables Used to Purple Glass
We use these lights in a purpling box to turn old clear glassware purple. Before a certain date, manganese was used as a clearing agent. With sunlight or UV rays it will turn purple. These work very well for the process although it is not what they were originally intended for.
June 30, 2011
Rated 4 out of 5 by Laurie59 A better quality product.
I appreciate the quality of this product and have found it to be a reliable UV bulb.
June 11, 2011