Homemade Powerful Real-Life Bat-Signal For Real

via

In this video I build a bat signal from a lensed flashlight beam. This design can be used to project any image, or simply act as a spotlight.The flashlight that is being used for this video is quite powerful and one might think that it wouldn’t be entirely practical. source/image: NightHawkInLight For the light source I’m using the Imalent MS18 flashlight, which you can check out here (this...

Source

https://ift.tt/33H3aAn