As one of its daily deals, Pennywise offers the TerraLUX Stealth LED 115-Lumen Tactical Flashlight, model no. TT-2, for $19.99 plus 1 cent for shipping. That's the lowest total price we could find by $22. Features include low battery indicator, waterproof functionality up to four hours, and run times of 1.2 hours on high, 6 hours on medium, and 60 hours on low. Deal ends May 30 at 9 pm ET.