I've recently purchased a Timeguard Pro floodlight and I want to connect it to a separate PIR unit (Timeguard MLB3000). The PIR I have isn't the type that fits onto the Pro floodlight, so is standalone. I just have a quick question regarding wiring the floodlight as a slave. I understand the L1 connector on the floodlight connects to the L1 on the PIR but do I also need to connect a neutral wire back to the PIR? Any info appreciated. Cheers.