Grandpa's e-cigarette flashes a red light and a white light.

In addition, both v 1 and plus versions have vibration reminding function. When you finish smoking 15 in 5 minutes, it reminds you that the amount you smoke is about equal to one cigarette.

Description of v 1 indicator light of lobular electronic cigarette: When inhaling, the indicator light turns on and off (dark red) with inhaling-the product works normally. The indicator light flashes quickly for 3 times (dark red)-the battery is low, so it is recommended to charge it. When inserting smoke bomb: blink 1 time (white). When charging: the indicator light flashes slowly (dark red)-normal charging. The indicator light is always on (white)-fully charged.