Replacement rubber LED power button cover and operating insert, suitable for the following Y11-Y13 models ONLY: Lezyne Mini 300/400XLHecto 400/500XLMicro 450/500/600XLMicro Pro 650/800XLLite 700/800/1000XLConnect 800/1000XLMacro 800/1100/1300XLPower 1100XL MPN: 1-SPARE-BUTTON-Y11-XL