If you’re thinking about lighting from a native vs non-native EMF perspective, grounding becomes an important piece of the puzzle. A lot of people focus only on the spectrum of light, but the electrical environment powering that light matters too.
Most lamps and light fixtures historically used two-prong plugs, which means the device is electrically floating so to speak. There’s hot and neutral, but no path for stray current to dissipate into ground.
From an electrical physics standpoint, that can allow:
Small leakage currents to accumulate on the fixture or cord
Larger ambient electric fields around wiring and the bulb (we don’t want this)
Your body to act as the capacitive path to ground when you’re nearby
A three-prong grounded design adds a third conductor that connects the fixture to earth ground. That means:
Leakage currents get shunted to ground instead of radiating outward
Electric fields around the device tend to stabilize and drop
The electrical environment around the light source be…
