I use small battery operated UV lights in showing currency and thought I would pass on info from a place that I have bought from twice (See Link Below). It's Black Light World, the 6" handheld lights are only $5.95. These are the BEST bang for the buck I have found. So any of you that need a cheap UV light to view your chips with this is the place. - I HAVE NO AFFILIATION WITH THEM except as a customer -

If you browse DO NOT BUY THE Black BUY THE Purple ONES:

They are ALMOST the same EXCEPT the switch is really cheesy on the black onrs and I think will break easily (I have 2 of those type & paid more for them) NOTE: The red light is NOT Laser.

Again I am not connected with these people of get any kickback from them. Just passing on information I think might be of interest.