In this project I did a Christmas jumper with rgb LEDs, this can also be a creative clothing project or whatever you want, it ...

Abstract: The chip-on-board light-emitting diodes (COB-LEDs) present low light efficiency due to the total internal reflection (TIR) at the flat encapsulant-air interface. In this study, a simple ...

Abstract: Contribution: This study identifies the types of interaction that contribute to student learning with student-led tutorials (SLTs). The quality of these interactions include peer discussion, ...

Learn how to install the Harbor Freight Solar LED Security Light quickly and easily with this step-by-step guide. Perfect for DIY enthusiasts and anyone upgrading home security. #SolarSecurityLight ...

Just like real UK traffic lights.