A neighbor across the street has five of them along each side of his
sidewalk.In the day time, the solar cells on top of the lights charge up
a little battery, (even on cloudy days too) and at dusk, the lights
light up and shine all night long.My neighbor said the lights wont put
out any light if he brings them (or one of them) inside his house.The
lights charge up in the day time, why wont they work inside his house?
cuhulin

On Wed, 5 Mar 2008 23:17:08 -0600, wrote:

:A neighbor across the street has five of them along each side of his
:sidewalk.In the day time, the solar cells on top of the lights charge up
:a little battery, (even on cloudy days too) and at dusk, the lights
:light up and shine all night long.My neighbor said the lights wont put
ut any light if he brings them (or one of them) inside his house.The
:lights charge up in the day time, why wont they work inside his house?
:cuhulin


The mind boggles....

"the solar cells on top of the lights..."

S.O.L.A.R meaning "pertaining to the sun"

Does your neighbour have his own SUN inside the house???

On Thu, 06 Mar 2008 06:58:21 GMT, Ross Herbert wrote:

:On Wed, 5 Mar 2008 23:17:08 -0600, wrote:
:
::A neighbor across the street has five of them along each side of his
::sidewalk.In the day time, the solar cells on top of the lights charge up
::a little battery, (even on cloudy days too) and at dusk, the lights
::light up and shine all night long.My neighbor said the lights wont put
:ut any light if he brings them (or one of them) inside his house.The
::lights charge up in the day time, why wont they work inside his house?
::cuhulin
:
:
:The mind boggles....
:
:"the solar cells on top of the lights..."
:
:S.O.L.A.R meaning "pertaining to the sun"
:
oes your neighbour have his own SUN inside the house???

Perhaps I misunderstood your question.

If you mean that the lamps are already charged by being in the sun and they
won't light when he brings them inside the house during the day then this is
also easy to explain. The lamps have an LDR which only allows the light to come
on after dusk or when the LDR is covered.

On Thu, 06 Mar 2008 07:03:13 GMT, Ross Herbert
put finger to keyboard and composed:

If you mean that the lamps are already charged by being in the sun and they
won't light when he brings them inside the house during the day then this is
also easy to explain. The lamps have an LDR which only allows the light to come
on after dusk or when the LDR is covered.

I would think that an LDR would be an unnecessary expense. Surely all
you would need to do would be to detect whether there was any output
from the solar cell.

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

On Sat, 08 Mar 2008 06:53:32 +1100, Franc Zabkar
wrote:

:On Thu, 06 Mar 2008 07:03:13 GMT, Ross Herbert
put finger to keyboard and composed:
:
:If you mean that the lamps are already charged by being in the sun and they
:won't light when he brings them inside the house during the day then this is
:also easy to explain. The lamps have an LDR which only allows the light to
come
:on after dusk or when the LDR is covered.
:
:I would think that an LDR would be an unnecessary expense. Surely all
:you would need to do would be to detect whether there was any output
:from the solar cell.
:
:- Franc Zabkar


The idea is for the solar cell to charge the battery during the daytime and for
the LED to come on only when needed ie, after dark. The LDR senses dusk and
performs the function. If the LED was allowed to stay on during the daytime
while the battery was also being charged, the battery would never fully charge.
The solar cell isn't very efficient.

Next time I go to the Wal Mart store, I am going to look around in the
yard and garden department.I will buy one or two of those lights and let
them charge up in the daytime outside.Then I will bring them into a dark
room in my house and see if they will put out any light.They might be
good for power outages.

On the web, Diesel Fuel Trees in Brazil

That will boggle your mind.
cuhulin

On Sat, 08 Mar 2008 05:27:08 GMT, Ross Herbert
put finger to keyboard and composed:

On Sat, 08 Mar 2008 06:53:32 +1100, Franc Zabkar
wrote:

:On Thu, 06 Mar 2008 07:03:13 GMT, Ross Herbert
put finger to keyboard and composed:
:
:If you mean that the lamps are already charged by being in the sun and they
:won't light when he brings them inside the house during the day then this is
:also easy to explain. The lamps have an LDR which only allows the light to
come
:on after dusk or when the LDR is covered.
:
:I would think that an LDR would be an unnecessary expense. Surely all
:you would need to do would be to detect whether there was any output
:from the solar cell.
:
:- Franc Zabkar


The idea is for the solar cell to charge the battery during the daytime and for
the LED to come on only when needed ie, after dark.

Understood.

The LDR senses dusk and
performs the function.

The solar cell is a *light dependent* sensor. It can perform the same
function. Think about it ;-)

If the LED was allowed to stay on during the daytime
while the battery was also being charged, the battery would never fully charge.
The solar cell isn't very efficient.

Understood.

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

Ross Herbert wrote in message
...
On Wed, 5 Mar 2008 23:17:08 -0600, wrote:

:A neighbor across the street has five of them along each side of his
:sidewalk.In the day time, the solar cells on top of the lights charge up
:a little battery, (even on cloudy days too) and at dusk, the lights
:light up and shine all night long.My neighbor said the lights wont put
ut any light if he brings them (or one of them) inside his house.The
:lights charge up in the day time, why wont they work inside his house?
:cuhulin


The mind boggles....

"the solar cells on top of the lights..."

S.O.L.A.R meaning "pertaining to the sun"

Does your neighbour have his own SUN inside the house???


The product that always tickled me were the concept of solar torches.

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/

"Ross Herbert" wrote in message
...
On Wed, 5 Mar 2008 23:17:08 -0600, wrote:

A neighbor across the street has five of them along each side of his
sidewalk.In the day time, the solar cells on top of the lights charge up
a little battery, (even on cloudy days too) and at dusk, the lights
light up and shine all night long.My neighbor said the lights wont put
out any light if he brings them (or one of them) inside his house.The
lights charge up in the day time, why wont they work inside his house?


The mind boggles.... "the solar cells on top of the lights..."
S.O.L.A.R meaning "pertaining to the sun"
Does your neighbour have his own SUN inside the house???

My mind really boggles. Light is light. Interior light will operate a solar
cell, if it's intense enough.

William Sommerwerck wrote:
"Ross Herbert" wrote in message
...
On Wed, 5 Mar 2008 23:17:08 -0600, wrote:

A neighbor across the street has five of them along each side of his
sidewalk.In the day time, the solar cells on top of the lights charge up
a little battery, (even on cloudy days too) and at dusk, the lights
light up and shine all night long.My neighbor said the lights wont put
out any light if he brings them (or one of them) inside his house.The
lights charge up in the day time, why wont they work inside his house?


The mind boggles.... "the solar cells on top of the lights..."
S.O.L.A.R meaning "pertaining to the sun"
Does your neighbour have his own SUN inside the house???

My mind really boggles. Light is light. Interior light will operate a solar
cell, if it's intense enough.



it rarely is

"Ron(UK)" wrote in
:

William Sommerwerck wrote:
"Ross Herbert" wrote in message
...
On Wed, 5 Mar 2008 23:17:08 -0600, wrote:

A neighbor across the street has five of them along each side of his
sidewalk.In the day time, the solar cells on top of the lights charge
up a little battery, (even on cloudy days too) and at dusk, the
lights light up and shine all night long.My neighbor said the lights
wont put out any light if he brings them (or one of them) inside his
house.The lights charge up in the day time, why wont they work inside
his house?


The mind boggles.... "the solar cells on top of the lights..."
S.O.L.A.R meaning "pertaining to the sun"
Does your neighbour have his own SUN inside the house???

My mind really boggles. Light is light. Interior light will operate a
solar cell, if it's intense enough.



it rarely is

It IS usually bright enough inside the house to keep the solar night lights
FROM TURNING ON.
Did he turn off the room lights?

as for charging the lights, now that is another question.
















--
bz 73 de N5BZ k

please pardon my infinite ignorance, the set-of-things-I-do-not-know is an
infinite set.

remove ch100-5 to avoid spam trap

In article 39,
bz wrote:



It IS usually bright enough inside the house to keep the solar night lights
FROM TURNING ON.
Did he turn off the room lights?

as for charging the lights, now that is another question.

The trouble I had was pounding the stakes into the concrete slab. The
sledge hammer kept smashing the solar cells on top.

On Thu, 6 Mar 2008 04:22:00 -0800, "William Sommerwerck"
wrote:

:"Ross Herbert" wrote in message
.. .
: On Wed, 5 Mar 2008 23:17:08 -0600, wrote:
:
: A neighbor across the street has five of them along each side of his
: sidewalk.In the day time, the solar cells on top of the lights charge up
: a little battery, (even on cloudy days too) and at dusk, the lights
: light up and shine all night long.My neighbor said the lights wont put
: out any light if he brings them (or one of them) inside his house.The
: lights charge up in the day time, why wont they work inside his house?
:
:
: The mind boggles.... "the solar cells on top of the lights..."
: S.O.L.A.R meaning "pertaining to the sun"
: Does your neighbour have his own SUN inside the house???
:
:My mind really boggles. Light is light. Interior light will operate a solar
:cell, if it's intense enough.
:

As others have commented, interior lighting is unlikely to be intense enough to
charge the battery in a solar lamp intended for outdoor use. Almost impossible
when you consider the extremely poor efficiency of those piddling cheap solar
cells.

So, the mind still boggles :-)