PoE LED Lighting

A bit of thinking should confirm all the doubts you might already have.

At present I have no concerns or doubts about PoE LED lighting one way of the other, I want to collate experiences and then decide.

BUT, the final decision will be that of the client!

No experience at all. However my immediate reaction was that power over ethernet is a way for power to "hitch" a ride on a data cable which is necessarily of a very high spec., and, what you want is a way for very low spec. data to "hitch" a ride on bog standard power cable.

A brief search for cable pricing seems to reveal that 8 core cat5e cable (24AWG) is much cheaper than 2 core (18 AWG, so same total cross sectional area) power cable.

So it probably depends on how much power you need to deliver over what sort of distances.

Low power: cheap single twisted pair wiring probably wins out.

Medium power: PoE wins out.

High power: mains cable wins out.

GA from me.. excellent article.. Many thanks

Read Solar Eagles link - apparently using DC from the a DC source to power LED's is more efficient than converting AC to DC and regulating. However, I don't see the savings being as they proposed, as there is still a conversion of AC to DC somewhere, if not directly to run the lights, except for the listed use with a solar system. Seems to me they forgot to add in this reduction of efficiency if using a typical ethernet system voltage source.

That makes no sense... all DC sources (except batteries*) are converted from AC at some point. The efficiency is merely a function of the topology used.
Del
*And even rechargeable batteries are charged from a source converted from AC.
From whence does the Ethernet get it's power?

As a designer of instrumentation circuitry and small motor power circuits, I should have thought of this sooner. Efficiency aside, the wiring has to be far easier to run, and if you make your own e-net cables, probably cheaper too. You can run the e-net cabling right across the surface, if you don't mind the ugly cables on the pretty architecture. No need for a typical home owner to call an electrician for a wiring job anymore. Voltages could be class 2 in the NEC, if you hold down the amperage draw per circuit and very easy to legally run. (don't know your codes over there for building wiring)

Well, fridges are still sometimes used for furs and even woollens as the temperature prevents hatching / growth of moths & other pests.

As for POE lighting, I'd guess it depends what your current (hoho) infrastructure is, it may just be easier to install, or there may be a data requirement also. Although frankly, I'm arguing with myself here, I'm still 90% in the "why would you?" camp.

Ferrari and Lamborghini make great pizza delivery vehicles.

(Actually a better answer than you might initially think.)

Local Home Depot had 60w eq. daylight Silvania led bulbs for $2.23 ea in 4paks and I have replaced all my lamps with these for roughly $70. They are only controlled by regular switch except for some X10 computer controlled lights. Expected savings are $40-50/mo. Addressable LED bulbs are $8 & up each and I would guess that would include the "ethernet" bulbs, hardly seems worth the investment, now I can run all of my lighting off a small/cheap inverter.

Savings of 40-50 $$$ a month?? My entire slectric bill is 40-50 $$ a month! That includes lighting, and I'm up all night, power tools, cooking and internet/24/7. What are you lighting? An entire town?