WS2801 Stripe Power consumption while LEDs off

Hello,

I am working on a project with 114 WS2801 LEDs, but only up to 30 LEDs will be lit up at the same time.
Does anyone know how much power the unused stripes use, if any at all? Or maybe help me how to check the consumption on my own.
Thanks!

Greetings,
Moerill

Standby current is 1-1.5mA

(114-30)*1mA = 84mA typical