Loew Cornell-TransformMason LED Lid Dual Pack. Easily transform your mason jar into lanterns for outdoor or indoor accent lighting! Has an On/Off button. Not waterproof. Max wattage: 0.065W per LED (has six LEDs). This package contains one LED lid that attaches to the included wide mouth insert and one regular mouth insert. Two AAA batteries required (sold separately). CAUTION: Do not expose to Extreme Temperature. Imported.