Loftek Direct via Amazon offers the Loftek 51 UV 395nM Ultraviolet LED Flashlight / Blacklight, model no. 51UV395nM, for $12.99. Coupon code "RWD3ENS5" cuts that to $9.99. Plus, Prime members bag free shipping. (Non-members can spend $35 or more to dodge the $5.37 shipping fee.) That's tied with our mention from last fall and the lowest total price we could find by $4. Its 51 UV LEDs emit a 395-nanometer wavelength to detect coins, minerals, scorpions, and other unmentionables.