Fits all Krypton / Xenon Maglite S3D015/16, S4D015/16, S5D015/16 and S6D015/16 series flashlights Light output up to 530 lumens. Easy to change like a regular bulb change. Integrated overheat protection to avoid any damage caused by overheating. Energy-saving up to 10 times more brightness than with original Krypton bulb. High impact and vibration resistance. 5 Years limited warranty. For latest Maglite (Bi-Pin Bulb) the white adapter also needs to be removed (simply pull it out).