The Modlite light 18350 handheld Body is designed as a direct replacement body for Surefire® Scout Light M600DF and KE2-DF heads. It will also fit all Modlite light heads.
This light body accepts 18650 cells only. Lithium CR123 cells are not supported and if used will cause the cells to heat up and possibly explode or catch fire. We recommend the KeepPower high drain 3500mAh cells which can be found here. Runtime is about 35-40 minutes with these cells.
The Modlite 18350 light body is NOT compatible with the Surefire older Scout light heads. Also please note this item is just a light body and it is not a complete light.
Want to read more about Modlite Systems and their company? Check out this article from AR Build Junkie. Also, check out the informative FAQs for Modlite products, batteries and light outputs in general.