LED-related trivia - A summary of trivia.

Introducing trivia related to LEDs! A variety of topics including the differences between direct current and alternating current, as well as comparisons and selection methods for various types of magnets.

In this document, we introduce some trivia related to LEDs. It includes information on battery standards, the safety and precautions of lithium-ion rechargeable batteries, and the differences between direct current (DC) and alternating current (AC). Additionally, it explains series and parallel connections of batteries, waterproofing of lights, the history of aluminum alloys, and flashlights. We encourage you to read it. 【Contents (partial)】 ■ About battery standards ■ Introduction to lithium-ion batteries ■ Safety and precautions for lithium-ion rechargeable batteries ■ Trivia about screws ■ Differences between direct current (DC) and alternating current (AC) *For more details, please refer to the PDF document or feel free to contact us.

Secondary Cells/Batteriesaluminummagnet