But compatibility isn’t its only strength. The S505D arrives with a remarkably accessible price point, making smart lighting upgrades attainable for everyone. It’s a bold move in a category often defined by premium costs. However, this simplicity comes with a caveat – it’s designed for single-pole setups and crucially, requires a neutral wire within your existing electrical box. This detail is vital; older homes may not have this wiring, potentially complicating installation.