Streamline the power feeding to the roof by using Pointguard's popular combi cabling when mounting Toplight and school sign. Flexible flat cable in black color with 6*0.5mm conductors of which 3 loose cables and 1 round waterproof female school sign connector (3 conductors).
To use this with the School sign 525, you will need an adapter cable: KAB-CON-411-525 or KAB-CON-411-525-V2 (depending on which model of the 525 you have).
