Nite Ize NIQ2-07-1WC Upgrade II, Second Generation 1 Watt L.E.D. and I.Q. Switch, Upgrades AA Mini Mag-Lite from Incandescent to LED Technology with On/Off/Strobe Switch 55 Lumens 15 hour run time Broadcasts light up to 50m Combines the super-bright 1 watt LED Upgrade II and the versatile IQ Switch