The Trifecta Trigger glue gun comes designed with a dual temperature switch.The glue gun accepts a Ryobi 18 Volt ONE battery by default, you can purchase adapters for Dewalt, Makita, Milwaukee. or Bosch separately.The red light setting is a standard temperature of 383 F.This setting is very similar to traditional high temp glue guns and will give the glue you use a similar feel and function to standard electric powered glue guns.However, by moving the on/off switch the opposite direction to the blue light setting, the glue gun will run at a reduced temperature. We call this “Eco Mode” and it is designed to be hot enough to allow the various adhesives to perform well, but greatly extend the battery run time of the tool. For instance, in the Eco setting the run time of a fully charged lithium-ion battery can be up to three times the run time of the tool in the red or high temp setting.The feedback we have always received on battery power glue guns is how to increase battery life. This new Eco Mode is designed to do just that.Other unique features include time tested durable feed design, extension nozzle for a clear view of glue placement, heat up time in either setting of 3 minutes.