About 3mm LEDs
LEDs enjoy a certain ubiquity in electronics circles where the compact, reliable lights enjoy a wide variety of uses. A 3mm LED in particular often finds its way into any number of electronics are an indicator or as part of an array of lights that work in concert for a larger purpose. The potential lifespan of an LED outstrips that of many other kinds of bulbs and it remains more resilient to constant use. The upside to this is that even pre-owned ones are useful. Initially, they were neither colored nor were they particularly bright, but the technology overcame this and you find a brilliant blue LED as assuredly as a clear one. Most colors and a number of setup types are available from eBay's reliable sellers to ensure you replace a failed LED or find just the right one to complete a project. You should note that even with the dedication to brightness and clarity found within the technology, there are options for anyone who wants more subdued-lighting. There is such a thing as a diffused LED that uses a casing that ensures the light emitted is softer. While many technologies end up scaling up to accommodate innovation, all of this is available in the form of a 3mm LED as assuredly as it is in a larger array.