"The Firefly, Invented by Eric Goldfarb is a unique design which turns your bottle into a lantern." "The unique lid design contains an integrated LED light which spreads a warm glow throughout the bottle." Via (hugg.com). » original news "The Firefly, Invented by Eric Goldfarb is a unique design which turns your bottle into a lantern." "The unique lid design contains an integrated LED light which spreads a warm glow throughout the bottle." Via (hugg.com). » original news