controllers. the more control you have over the leds, the greater spectral variations you can have, with colour, with intensity. we mana . ed with colour, with intensity. we managed to with colour, with intensity. we managed to get this massive movement up managed to get this massive movement up to the managed to get this massive movement up to the sky, the posed. that s a massive up to the sky, the posed. that s a massive movement, these are 80 feet lon- massive movement, these are 80 feet long arms massive movement, these are 80 feet long arms that weighed tonnes. if long arms that weighed tonnes. [f the long arms that weighed tonnes. the giant long arms that weighed tonnes. if the giant is on the bottom of the ground the giant is on the bottom of the ground in the giant is on the bottom of the ground in the the giant is on the bottom of the ground in the museum, - the giant is on the bottom of the ground in the museum, you - the giant is on the bottom of the i ground in