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Comment by vel0city | Hacker News Reader

It doesn't need to be for the whole house, it just needs to be for the lighting fixtures. Obviously nobody is going to use a microwave or blender on 12V. It's not like our bulbs plug into NEMA 5-15 outlets. Having good DC standard voltages and plugs would be incredibly useful. Don't bother running 12V everywhere, but like after the 120V light switch go to a single controller that then drives the lights for that room. Or have that be in the box with the switch, although that might still have the same kind of cramped heat issue.

And it's not like we need to just stop producing Edison socket styles tomorrow. But let's make sane standards today.

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I don't know how it is where you live, but most apartments where I've lived in Paris didn't have dedicated wiring for the lights in the "living" spaces. They had them in the bathroom / hallway / kitchen, but not in the living rooms, for example.

My current apartment has dedicated circuits in the living room and bedroom. But in the living room they're in awkward places.

I always had to resort to multiple lamps that would plug into an outlet so I could place them where I needed them. Running 12 V for the bulbs would require rewiring most of the apartment.

Now, I'm not against having a new socket standard. But it would have to be connected to 220 V.

> it just needs to be for the lighting fixtures

Its not like your bulbs are plugging straight into your wall outlets. You've got some kind of lamp fixture that the bulbs screw in to, correct?

Your lamps would still plug into mains, same as they do today. The lamp fixture overall would contain the driver components, hopefully in packaging which lets it manage heat well and have good build quality. But whatever parts do fail routinely should be able to be easily replaced with some kind of standardized socket. It just seems like we're trying to squeeze too much too cheaply into a form factor that's ill suited for the requirements by trying to shove all the driver circuitry into the same envelope of an older Edison A-shape socket style bulb.

This has already kind of been a thing for a while with low voltage halogen lamps. The bulbs themselves aren't made for mains voltage, the lamp structures themselves give the right voltage for the halogen mini bulbs. I've replaced a few bi-pin halogen lights for LEDs with drop-in replacements (especially for outdoor lights), but this same kind of bulb packaging hasn't really been very common for interior lighting from what I've seen.

> Now, I'm not against having a new socket standard. But it would have to be connected to 220 V.

Why would it need to be 220 V in the "socket" for the bulb? Why do we need lamps themselves to just be a frame to hold a wire, why not put the driver circuitry in there to step it down to whatever voltage we decide to drive the DC LED bulbs at?

> Why would it need to be 220 V in the "socket" for the bulb? Why do we need lamps themselves to just be a frame to hold a wire, why not put the driver circuitry in there to step it down to whatever voltage we decide to drive the DC LED bulbs at?

I was talking about the lamp itself. Maybe I used the wrong term? I meant the fixture which holds the wire and expects a bulb. That fixture needs to go into mains, because that outlet may have to also service something else entirely.

Now, sure, usually those fixtures tend to be larger than the bulbs, so they could hold the conversion circuitry. I'd be fine with that. But the commenter I was replying to talked about having an alternative DC circuit for the lights.

Sure, and we can have that too, in the places where the lights are built-in to the ceilings or cabinets or whatever. When we have lights in the ceilings, the fixtures again can handle this specialized LED bulb style. And one might even link several lights into a single DC circuit for all the lights in the room versus having each individual light do its own AC->DC conversions in compromised envelopes.

That is fairly typically in the US as well. Most often there is a switch in the living spaces, which controls have the outlet half of a duplex outlet. Plug something into the top (sometimes bottom - there is no standard) and the switch controls it so you can get the lights on/off when you enter/leave the room, plug into the bottom (again sometimes top) and it is always on, perfect for whatever else you have in the room.

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