The UV light is of average brightness, and overall it seems like a sturdy, high-quality product. However, I subtracted 1 star because I found another UV pen light that is even brighter for half the price ($10 vs $19) - that product is a children's toy! It's strange that a cheap, plastic children's toy UV light should be brighter than a sophisticated-looking "adult" UV light.
If you want a brighter light, check out that toy: it's the "Secret Agent File: Including amazing invisible ink pen!" (Hardcover) by Moira Butterfield (Author), Tony Potter (Designer)
However, perhaps this product will be longer-lasting than the children's version.Get more detail about Streamlight 65069 Stylus 6-1/4-Inch Penlight with Pocket Clip and UV LED, Black.
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