Replacing Milwaukee® M12™, M18™, V28®, and Most Other Branded 9.6V-28V Incandescent Bulbs, The 49-81-0090 Upgrade to Led Bulb Works In Most Power Tool Work Lights and Delivers Over 3X The Run-Time Of Traditional Light Bulbs. With A 50, 000 Hour Led and Limited Lifetime Warranty; The 49-81-0090 Is A Solid State Light That Will Not Break From A Fall.