litexpress lxb525 2mode led upgrade modules 525 or 55 lumens only for 3-7 c/d-cell maglite flashlights litexpress fits all krypton / xenon maglite s3d015/16, s4d015/16, s5d015/16 and s6d015/16 series flashlights light output can be up to 525 or 55 lumens. 55 lumen low mode particularly suitable for reading. light duration up to 16 days with alkaline d cell batteries. easy to change like a regular bulb change. integrated overheating protection to avoid any damage caused by heat. energy-saving up to 10 times more light than with krypton bulb. high impact and vibration resistance. 5 year warranty. for newer maglite (bi-pin) the white adapter also needs to be removed (simply pull out). original maglite led flashlights cannot be modified using this litexpress led module.