The automatic sleep mode kicks in after 2 minutes of inactivity and decreases temperature of the tip to save power. The soldering iron reheats automatically once you pick it up. Moreover, to warn you about over-heating of the device, there is a special LED indicator.
The high wattage and high-quality ceramic heating element enables this soldering iron to heat up quickly. It reaches 300 degrees Fahrenheit in under 1 minute, and heats consistently for long periods. This makes it well-suited for big projects that require extended soldering.
The temperature control function allows you to choose from 302 up to 842°F of heat. Having this much control, you can use this soldering iron for tasks that demand precision - like working with very small objects.
The temperature of the tip is not adjustable, which isn't necessarily required by most hobbyists. However it makes this soldering iron a bad choice if your work demands a lot of precision, consistent heat output, and a display to monitor the temperature.