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The globes at the path to the building of 31-33-35 Bet-Lehem street, modded to LED (And still operates at 24V 50hz)

The globes at the path to the building of 31-33-35 Bet-Lehem street, modded to LED (And still operates at 24V 50hz)

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When we went to my father home, I've seen that the apartment building committee, installed a socket splitter inside all of the globes, and one have 24V 60W incandescent lamp and the other have a LED lamp of an unknown voltage (In the opal globe, both lamps are LED).
The LED lamps operates directly from the 24V transformer, but still have some electronics to regulate currents to the LEDs and to rectify the current to DC.
These LED lamps haven't any electrolytic capacitor, as they flickers 100hz.

IMG_0355~0.JPG The_LED_lamp_during_the_day.jpg A_24V_incandescent_globe_lantern,_modded_to_LED.jpg IMG_0310~0.JPG

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Filename:A_24V_incandescent_globe_lantern,_modded_to_LED.jpg
Album name:dor123 / LED lighting (Except road lanterns), LEDs in general, lasers, flashlights and other lighting gadgets
Keywords:Lamps
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Date added:Dec 12, 2013
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AngryHorse
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Dec 12, 2013 at 02:22 PM Author: AngryHorse
I like these, it looks a good color mix, but how come their low voltage?

Current: UK 230V, 50Hz
Power provider: e.on energy
Street lighting in our town: Philips UniStreet LED

"Beauty fades, dumb is forever".......Judge Judy Cheesy

dor123
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Dec 12, 2013 at 02:37 PM Author: dor123
All of these globes, operates from a 230V -> 24V step down transformer.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

AngryHorse
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Dec 12, 2013 at 02:43 PM Author: AngryHorse
But why here?, most low voltage stuff in the UK is used either as on site contractors equipment, or in swimming pool installations.

Current: UK 230V, 50Hz
Power provider: e.on energy
Street lighting in our town: Philips UniStreet LED

"Beauty fades, dumb is forever".......Judge Judy Cheesy

dor123
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Dec 13, 2013 at 02:43 AM Author: dor123
I don't know why these globes operates from a 24V supply.
But incandscent lamps of low voltage, are way more efficient than 230-240V ones.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

AngryHorse
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Rich


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Dec 13, 2013 at 03:00 AM Author: AngryHorse
Ah right, they also may have a longer life too, the red and the blue/white do go together well though.

Current: UK 230V, 50Hz
Power provider: e.on energy
Street lighting in our town: Philips UniStreet LED

"Beauty fades, dumb is forever".......Judge Judy Cheesy

dor123
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Dec 13, 2013 at 03:31 AM Author: dor123
I don't know what is the operating voltage of the LED lamps, but the are very dim compared to the incandescent lamps. They aren't glaring at all.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

Ash
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Dec 13, 2013 at 11:05 AM Author: Ash
Efficiency was not the thing here. I think originally (with hte low poles with accessible lamps) it was done for safety

One question though - Where did they source those 24v LEDs ?
dor123
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Dec 13, 2013 at 11:59 AM Author: dor123
They probably thinks that the LED will save them more energy than the incandescent: Indeed, the first white globe, which both of its lamps replaced by LEDs, have a kerosene lamp light output.
A video will follow.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

AngryHorse
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Dec 13, 2013 at 02:13 PM Author: AngryHorse
Wouldn`t a Kerosene lamp resemble more of a GLS color?

Current: UK 230V, 50Hz
Power provider: e.on energy
Street lighting in our town: Philips UniStreet LED

"Beauty fades, dumb is forever".......Judge Judy Cheesy

dor123
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Dec 14, 2013 at 12:09 AM Author: dor123
I meaned that the globe with the two LED lamps, isn't stronger than a kerosene lamp, but of course, it have a different light colour than a kerosene lamp.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

randacnam7321
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Dec 15, 2013 at 12:38 AM Author: randacnam7321
As those splitters are almost always parallel wired, the LEDs are running on the same 24V as the incandescent lamp. They look like some of the Ebay special LEDs that have a load of SMD LEDs run in series on a capacitive dropper, so they are probably just 24V variants of the same thing (LEDs in series parallel for string drops of 15V to 20V and only resistors for current limiting).

Old school FTW!

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