There’s no standards and people are clueless and confused. There are awesome LEDs, but more often you see have harsh, terrible light.
In the US people use roughly 10 000 kwh per year.
Say we have a 40 watt bulb, say it burns on average 5 hours per day or 200 wh. In 365 days that would be 72 kwh which at 16 cents per kwh is $11.52 or 0.73% of the annual power consumption.
Say one uses 5 light bulbs. Something around $57.60. Say leds use only 25% of the power = $14.40 for $43.2 saved.
Well over 10 cents per day.
What are you going to spend your 10 cents on? lol
Yeah I know. I love it in my house.
On the industrial side, sodium vs LED is a much closer comparison generally than LED vs incandescent. LEDs kinda suck for high bay applications.
Besides, we can have LEDs in better spectrums for under 1/5th the costs of incandescents. We just hired stingy motherfuckers and don't care about the repercussions of our decisions.