Princeton Tec Fred Headlamp - Black w/Red LEDFred Headlamp Black with Red LED Small, lightweight, feature rich, and user friendly. The Fred offers 200 lumens of dimmable white light and a red LED to help preserve your night vision. A single press of the Freds large easy to activate button turns on your red LED in low. Press again to increase brightness then press and hold to activate the 200 lumen white flood mode. While in white mode, press and dim the white LEDs from 200 to 30 lumens quickly.