This time I bring an electronic kit for beginners, this is a very cheap and interesting device that displays audio levels ...

DIY Epoxy Resin Sign with LEDs | Light Up Your Space with Custom Style 💡🪵 Want to create a sign that really stands out? In this epic DIY project, I combine epoxy resin art with built-in LED lighting ...

The Streamlight TwinTask 3C UV LED arrived (ordered from Amazon for $33) and was promptly put to use seeing where rats and mice had their little rodent runs getting into the attic. (Quick summary from ...

I’d heard of high-brightness LEDs (HB LEDs) in the ultra-violet light range being used in therapeutic applications such as bilirubin blankets for treating jaundiced babies. I found out another use for ...