Different lighting technology has its pros and cons. If you're looking for affordability, go with halogen; for brightness, ...

These lenses can get very expensive, but in the video after the break [Matt] from [DIY Perks] blows all the commercially available options out of the water. Using an old episcope projector ...

That’s a common pain point with ultra-short throw projectors whose lenses typically point straight ... as a Stanley tumbler but incorporates an LED-based pivoting projector head that can ...