These are colored lawn lights that are solar powered.

They charge during the day, provided you have sunlight.
Then they glow at night, freely powered solar lights which can be used a subtle party lights

NEW SOLAR POWER OUTDOOR TULIP FLOWER TABLE LAMP LIGHT $27.95	SOLAR LIGHTS 4pk LIGHTED FLOWER TULIPS $0.99	840056 3 Piece, Tulip Solar Powered Stake Light $23.99
Solar Led Powered Tulip Outdoor Path Light $5.9	Solar Tulip Lights solar garden decoration light $22.47	SOLAR Tulip Light Planter Plant Stand/Bird Feeder/Bath $26.87