With 370 kilograms of xenon LUX is more sensitive than XENON or CDMS. Originally Maglite flashlights used krypton or xenon incandescent bulbs. Safety features include ASC+T traction control, headlight washers and auto-leveling low beam xenon HID headlamps. Helium, neon, argon, krypton, xenon, and radon are inert gases. All models equipped with Xenon headlamps were changed to projector headlamps instead. These are helium, neon, argon, krypton, xenon, radon and oganesson. The bulbs are under vacuum or filled with argon, krypton or xenon. These occur for the noble gases helium, neon, argon, krypton, xenon, radon and oganesson. The group 8 elements include helium, neon, argon, krypton, xenon and radon. This rod is surrounded by a flash tube containing xenon or krypton. Developed around 1915, these lamps were displaced by mercury and xenon arc lamps. Ion thrusters emit a beam of positively charged xenon ions. Noble liquid detectors detect scintillation produced by a particle collision in liquid xenon or argon. As of 2008, endohedral complexes with helium, neon, argon, krypton, and xenon have been created. The chemistry of the heavier noble gases, krypton and xenon, are well established.