This festoon lights looks like a bulb and can be used both indoors and outdoors. It will give you an atmospheric light with an industrial look. Each deco light has a string inside with 5 soft tone LEDs which gives you atmospheric light and can be hanged with the supplied bracket. The deco light is made of real glass and functions on an AA Alkaline battery which is not included, and it has a push-button on the top. This Lux form battery garden LED deco light set consists of 4 lamps with a cool, industrial look that emit a pleasant, soft tone light. Each deco light has 5 soft tone LEDs and can be used freestanding or suspended from the included bracket. The deco lights are made of real glass and function on AA Alkaline batteries (not included) and have an on/off button on the top. These lights operate on a timed lighting cycle. When the light is switched to ON, it will emit light for 4 hours. After those 4 hours, the light will automatically shut off for 20 hours. After those 20 hours, the light will automatically repeat the cycle of being lit for 4 hours and switch off for 20 hours.