Quoted from Aquapin:If you're good with electronics you can add a 5V relay and make it only run when the lights go out. Buddy did this and it works great, I have the hardware purchased but haven't had the time to solder in (bought my own motor, light and disco ball).
...aaaannnnndddd one more... LERMODS disco ball is pretty cool. Interesting how it works... There is a sensor that detects the light from whatever insert you want to "make-the-ball-spin-at-the-same-time-as." So, at first - the ball was spinning more than I wanted it to. So, I used electrical tape to block the light from the dazzler spinner insert (there was like, 'extra' light getting to the sensor). Now, the ball started spinning only when "DISCO" insert was flashing. But it only spins when the insert is lit. So, if the insert is flashing, the disco ball and light kind of "pulse," on and off. It looks very visually smooth. I am glad I did this vs the "permanently on," version. I think it is just preference.
I am probably telling you all something that you all already know... but if not - I am a fan... It's eye catching and is a fun little toy.