Here are some examples of the red flashlight I mentioned during the mini workshop, they change out periodically and are no longer available sometimes. This should give you good examples of the kind I recommend for observing or at a Star Party.
Multipacks…
WAYLLSHINE (Pack of 3) Single Mode Red Light Flashlight, 1 Mode Red LED Flashlight Red Flashlight Torch, Red LED Red Light For Astronomy, Aviation, Night Observation
Single, zooms…
High Power One Mode Red LED Flashlight, Powerful Single Mode Red Flashlight, Red Light Flashlight Red LED Red Light Torch For Astronomy, Aviation, Night Observation-Black
Single, doesn’t ‘zoom’…
HQRP Portable Pocket Red Light Flashlight with 9 LEDs for Watching Iguanas and Snakes, Hamsters and Hedgehogs, Turtles and Reptiles at Night
