Simple: hang it wherever you want using the cord; pull a first time: the well-diffused light turns on pull a second time: it turns off. Very practical: it is a practical and functional battery bulb; works with 3 AAA batteries (not supplied); so you can bring the light where you have no power outlets and light points. 40 hours of autonomy (continuous use). Safe: the bulb does not heat up, remains cold and the LED light immediately gives a pleasant, homogeneous, diffused and in any case strong lighting (50 lumens). Sturdy: manufactured with very robust material, which makes the bulb resistant to impact; drawstring: 105 cm visible. Velamp is, since 1906, an Italian company that takes care of its products: beware of imitations.