This is a 5 watt Convoy style true 365nm UV flashlight. It uses one 18650 lithium ion battery (included) and can be charged right in the flashlight with the included charging cable.
It also comes with an adapter for using 3 AAA batteries.
This flashlight works great for finding Yooperlites and UV minerals. It does not have a filter and filters will not be available for this light.
This light is taking the place of my 395nm 100 led option. This light package comes with everything you need to hunt Yooperlites right in the box!! This is my cheapest option and also available in a Family 5 pack for $99.99 also available at www.yooperlites.com