Also speaking as an electronics designer with a CLIENT in the area of LED lighting, I can tell you that's it's STONE STUPID to be doing bulb for bulb replacements. That requires a complex power supply to get from 120V mains to about 24Volt DC in each bulb..
No it doesn't! A 50VA-120/24v Class II transformer is about $20 bucks and can be fed from your existing 120v system.
What the Hell man.. My observation was that bulb to bulb replacements REQUIRE a Full Safety, EMI, UL approved switching power supply in EACH BULB ! Are you unaware of this? You might be an engineer but you're being combative here and not thinking.. Peoples lighting is NOW edison screw bases powered with 120VAC mains. What does adding a transformer to the box buy them UNLESS the house is wired for DC buss supply?
Adds cost, greatly lowers reliability.....
It does add cost.
Turns out that adding a full certified switcher in the base of EACH BULB also GREATLY reduces the lifetime.. Electrolytic caps have shorter lives than LEDs Especially when they are at elevated temps in an enclosed space.
What the hell does that mean?
Any conversion you do in the building, the panel is going to see it, so what are you talking about?
You mean fixtures; the bulbs are what is being replaced.
You mean "driver".
Retro-fits can be done that way as well.
And there is twice as many that doesn't.
That's just because the voltage is compatible.
If you're sadistic enough to consider that questionable move.
BTW: When folks don't see a big diff in their electric bill, it may just be because the GOVT and the ECO-FRAUDs have perpetrated a mighty lie.. The incandescent bulb is 100% efficient anytime you use it in an area with HVAC on "heat".. Going to LEDS means that if you have Electric Heating or even a Heat Pump, that it will run longer in the cold months BECAUSE of the LED lighting..
Bullshit!
Absolutely not.. You've been lied to by OMISSION.. The fact that I have to explain this to you = severly makes me doubts your claims to tech savviness. Your chart below shows efficiencies based on the energy in light out.. The assumption is that everything else goes to waste (mostly in the form of heat).. For an incandescent, waste heat is ONLY WASTE when the HVAC is not set to Heating. When it is SET TO HEAT (4 to 7 months/ year) it offsets the duty cycle of the HVAC heating. Now your eco-frauds and Fed Govt are too stone stupid to know that or care --- but you and me ought to know when we're getting sold some snake oil.. Like I said,,, from a physics and engineering POV -- an incandescent bulb is 100% efficient when the HVAC heating is set to ON..
Prove me wrong.
Here's the efficacy comparison between incandescents and LED's.
Similiar problem they had Up North when they went to LED traffic lights.. Ending up screwing all that efficiency because they had to install heaters for wintertime to keep the housing and lenses from icing up...
No shit, Sherlock!