While the bulb is on, quickly turn the bulb off and then on 10 times in quick succession (using a light switch or power bar works best). If the reset is successful, the bulb will flash five times. If it does not flash five times, you will have to try again.
Note: These instructions do NOT apply to Element Touch bulbs, which have a button on the side of the bulb. To learn how to reset these bulbs, please consult the How do I reset the Element Touch bulb? article.