The Nichia(R) L.E.D. light is the brightest and whitest available. Built to provide over 23 hours of continuous light and years of intermittent light. Push-button switch. 2 lithium button cell batteries included (refillable).  This item is in-stock with the Westfield Group logo and ready for immediate shipment.  All other logos required a longer lead time and minimum order requirement of 48 pieces.