system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do lamps with the twist thing always tick twice?

Why does the twist thing on traditional lamps always tick twice to be turned on or off?
gpt
> Why does the twist thing on traditional lamps always tick twice to be turned on or off?

They don't always click twice, they only click twice on lamps which are designed to work with bulbs that have two brightness settings. If you put a single brightness bulb it will still work but with the extra click.