With le following features - Ultra reliable: no bulbs da replace. - Tested le vibrations and sealed throughout life. Replace le standard Arrows with these beautifully crafted, miniaturized, high-performance ad components. A high ad intensity light emitting diodi (LED) battery. With up to 10,000 MCDs (1000 power candles) lighting optimized with pilatest technology and to contribute maximum visibility during le maneuvers. Oxford Eyeshot LEDicators boasts pilong life compared to conventional light bulb ones, so you can da enjoy piyour bike. Size: 20x27x89.2 mm