This project is quick and easy to put together, yet really impressive. Even more so in person than in the video. With this flashlight conversion I was lighting up trees as bright as day at 300 yards and further. By adjusting the flashlight's position on the block the light can be made to focus to either a narrow beam for maximum range, or a softer spot to provide more even lighting.
The makeshift bat signal shown later in the video was created as an afterthought to the main project and it really turned out great. That could be a fun one to use around town.