Icep 660 question

[schatzi]

I see you can run up to 4 lamps on the 660, can these be powered on and off separately? I'm guessing no....

and if no, i thought about cutting into the lamp leads with relays so you could switch them independently but figure this wouldn't work if the setup needs a continuous electrical loop from lamp to lamp.

thanks for the input

[fsn77]

On an IC 660, the bulbs will all be on or all be off. There's no independent switching.

It is my understanding that the ballast only works if the circuit is complete, although I do not fully understand how it exacly knows there's a certain number of bulbs it should be trying to light, as any unused leads on the wire harness are just taped off individually (ie. not paired up).