Our lamps are tested for the most up to date industry standards to ensure high quality across all of our products. If you are experiencing flashing and/or blinking, this is typically due to a lack of power to the lamp. This is almost always due to low battery power, and this can be fixed by either: (1) plugging the lamp in using the included USB cord, or (2) getting a new set of fresh 3 x AA batteries. If the problem continues after you have tried this, please contact us at support@otakulamps.com