Princeton Tec AMP 3.5 LED Flashlight. The Amp 3.5 is the latest addition to the Amp series of handheld lights. Utilizing the same rugged and lightweight body style as the Amp 3.0, the Amp 3.5 utilizes a 100 lumen Maxbright LED. So as the Amp 3.0 conquers the world of area lighting, the Amp 3.5 is designed to offer a powerful spot beam capable of shining up to 75 meters. Whatever your handheld lighting needs may be, there is a reliable and lightweight Amp flashlight to satisfy them.