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NiteLite Comparison (LED vs Incandescent)
This is a simple model showing both a bi-color(XOR), diffuser supported LED nightlight, and a 5w Incandescent bulb. The output flux is approximated (LED side assumed from a scavenged physical design), but should be a bit higher in the LED side (though, relatively narrowband for either color).
The component variables are approximated; the LED unit should be about an order of magnitude more efficient as far as wattage/RMSw.
It's fairly obvious and mostly accepted today as a general truth that Incandescent bulbs are disgustingly wasteful, as they rely entirely on BBR (thermal energy) to emit a smudge of visible light. While LEDs of any chemistry produce light via more precise (this is generalized) QED described electron behavior that is not coupled to source spectrum BBR. While there is still a quantifiable excitation similarity 'at arms length'... Incandescent filament emissions are highly disordered as the emission material is not coupled in a quantized system (at least, not the variables we care about here). LEDs and laser diodes are very efficient due to a remarkably higher coherence of the emission substrate.
Footnote .. On most of my designs that include mains voltage, I insert the two-phase 240 transformer for a few reasons. The purpose of these simulations is moreover for concept, not accuracy, which changes between platforms (LTSpice, EveryCircuit, Falstads JRE, ETC). Sometimes it's useful to have coupled 120 phase legs in the same FBD sim. It's not critical most of the time, but some simulators get really pissed off about source impedance or L(r) or even just the way the ground states are interpreted; this is a relatively universal means to polarize the simulation response across most platforms, IME.
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