BCB International brought something so new it doesn’t even have a product name yet.

These illumination markers are meant as an alternative to disposable Chemlights. Available in Green, Red, Blue, White and IR, they can be turned on and off as needed and run for 36 hours. They’ve been tested down to -25 Deg C and the rep says you can get them wet.
This and other products shown at Rampart Range Day are available for unit and agency orders in Canada and the US through Rampart.