The Linx Eden Switch is so easy to use, even your your grandma could use it! It comes with 4 pre-set temperature settings ranging from 360 to 428 Fahrenheit which takes the guess work out of finding the perfect temperature - Just pick your favorite setting and the device will automatically begin heating when you turn it on.  For the max temperature of red at 428 Fahrenheit, the heat-up time will take about 20 seconds. Let's take a look at a sample session with the Switch: Unscrew the mouthpiece from the device Load ground material into the Quartz Dosing Capsule Screw the mouthpiece back onto the device Cycle through the four pre-set temperatures by clicking the power button three times quickly (Blue, Green, Yellow, Red) Once the Switch vibrates and the light turns solid, you can begin your session Utilize long and slow inhales of around 15 seconds for the best results * If you want to swap out dosing capsules, you'll have to unthread the small funnel that sits above the chamber.