UV pen (security marker) with a UV light built into the cap - see what you have written! Or just use the UV light as a general purpose UV light.
The UV light is for viewing UV ink. It works fine, it is OK for security marking, it is great fun for secret writing. But please do bear in mind that this is a £4.90 item, it is not good enough for banknotes and stamps, antique glass and porcelain, gemstones etc, please see our other UV lights.
Read all about how UV light works; see lots of photographs of what you will see with UV light, click here.
This is a very low value item. We have a minimum order charge of £7.50 (£6.25 + VAT). Is this the only item you require? You may wish to buy more than one, or add some other items to the order.