This set of ten 15 cm meteor shower tubes have 10 LEDs per tube and are double sided too There's a long 10 m lead wire to the first tube and 0.5m of cable between tubes to help you spread them out to give the maximum effect Each tube has a 1.5 cm diameter and is fully waterproof; their individually control LED so they drop at different intervals The transformer must be mounted inside or in a waterproof socket Size: Length 15 cm (6 inch)