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1156 bulb versus CF bulb

C

clare at snyder.on.ca

Jan 1, 1970
0
Does anyone know how much a 1156 12 volt auto buld draws?
What would a 120 volt CF bulb draw on the 12 volt dc side of one of
those cheap crappy tire inverters 75 watt and 400 watt. (rated at 9
watts 120 vac)
This is an RV project..........
1156 draws aprox 2.1 amps at 12.8 volts, for 27 watts.
If the cf, rated at 9 watts is only 90% efficient, it could actually
consume 10 watts. If the inverter has an overhead of 5 watts and a
conversion efficiency of 90%you are looking at 16 watts - just over
half the power consumed by the 1156.
Your lamp and inverter efficiency may vary.
 
T

Tim Thomson

Jan 1, 1970
0
clare said:
1156 draws aprox 2.1 amps at 12.8 volts, for 27 watts.
If the cf, rated at 9 watts is only 90% efficient, it could actually
consume 10 watts. If the inverter has an overhead of 5 watts and a
conversion efficiency of 90%you are looking at 16 watts - just over
half the power consumed by the 1156.
Your lamp and inverter efficiency may vary.

Thats about what I thought more light and half the draw then! Good!
 
V

Vaughn

Jan 1, 1970
0
M

Mr Wizzard

Jan 1, 1970
0
Vaughn said:
I think this one is 12 watts, but not 12 volts.


These are 12 volts and they are great lamps, been using them for years for
yard lighting. Someday I will run some 12 volt circuits so I can use them
inside.

Yard lighting??? That Feit number I give ya (~13T/MAR-12)
is a full-size CF w/ standard Edison base (and not water proof).
And they are 12-v "DC", so I'm interested in your set up. When
I hear "yard lighting", I think 12-volt "AC", cheesy Malibu lights,
zip cord all tangled in beauty bark, and wrapped around the rose
bushes, and them goofy-ass connectors that NOone can get to
work. So how do you power your "yard lights" ?
 
V

Vaughn

Jan 1, 1970
0
Mr Wizzard said:
Yard lighting??? That Feit number I give ya (~13T/MAR-12)
is a full-size CF w/ standard Edison base (and not water proof).
And they are 12-v "DC", so I'm interested in your set up. When
I hear "yard lighting", I think 12-volt "AC", cheesy Malibu lights,
zip cord all tangled in beauty bark, and wrapped around the rose
bushes, and them goofy-ass connectors that NOone can get to
work. So how do you power your "yard lights" ?

Not yard lighting as in "accent lighting" but real area anti-crime and
convenience lighting. I power them with a set of 4 batteries that also serves
as the starting battery for my generator & for hurricane power. The battery is
charged with two mismatched solar panels that add up to about 100 watts. A
little Trace C12 controller does everything (charge control, LVD, & lamp
control). I put those Feit lamps in ordinary porch light fixtures and connect
them with the heavy size Malibu light cable. After several years, I am still
waiting for the first lamp to fail.

Vaughn
 
M

Mr Wizzard

Jan 1, 1970
0
Vaughn said:
Not yard lighting as in "accent lighting" but real area anti-crime and
convenience lighting. I power them with a set of 4 batteries that also serves
as the starting battery for my generator & for hurricane power. The battery is
charged with two mismatched solar panels that add up to about 100 watts. A
little Trace C12 controller does everything (charge control, LVD, & lamp
control). I put those Feit lamps in ordinary porch light fixtures and connect
them with the heavy size Malibu light cable. After several years, I am still
waiting for the first lamp to fail.

Dude, you ROCK!. You are "all over" this.
Trace engineering makes excelent products.
I'm wanting one of their 3KW inverters to
use with this load of 105AH brand new TelCo
batteries I got, but I just can't swing that price.
And its truely "good" that you were thinking
about LVD. The only thing "wrong" with your
rig that that fricken Malibu light cable hehe...
(sorry, I had to stick that in - I hate that stuff)
Too stiff to work with in the cold, expensive,
and did I mention, I jsut hate the stuff? hehe.
For LV stuff, I use 12-guage speaker cable -
I found it at a local hardware store to actually
be cheaper than 16 gague zip cord, can u believe?
And since one of them Feit 12-volt CF's only draw
..86 Amps, all you really need is ordinary household
zip cord (unless you are feeding a large string of em)

Anyway, thats way off on a tangent. So what kind
of batteries you got? Some sort of Hawker AGM ?
(or regular 15ah gel-cells ?) And yeah, aint them
Feit 12-volt CF's something? - man, they do get
bright after being on for some time, don't they?
I never even thought of using them for outside.
 
V

Vaughn

Jan 1, 1970
0
Anyway, thats way off on a tangent. So what kind
of batteries you got? Some sort of Hawker AGM ?
(or regular 15ah gel-cells ?)

Like I said, they serve as the cranking battery for my generator, which is
an Onan, which takes lost of starting current so gell-cells would hardly do.
They are (now rather elderly) AGM's. Don't remember the make.
And yeah, aint them
Feit 12-volt CF's something? - man, they do get
bright after being on for some time, don't they?
I never even thought of using them for outside.

I don't understand why they are not more popular.

Vaughn
 
T

Tim Thomson

Jan 1, 1970
0
Thin-lite.........that is what I put above the sink in my RV a small double
tube Thin-lite. I cant remember the exact model #. It doesn't give me the
light I want and it draws allmost the same as one 1156. At least my clamp
tells me so.

Just a note.... I put a CF in my photo sensor fixture at my back
door(against the maunfacture rules).......figured it would work fine and it
does. The photo fixture I am talking about has a relay switching method
built in. I can hear it clik.
 
M

Mr Wizzard

Jan 1, 1970
0
Vaughn said:
Like I said, they serve as the cranking battery for my generator, which is
an Onan, which takes lost of starting current so gell-cells would hardly do.
They are (now rather elderly) AGM's. Don't remember the make.


I don't understand why they are not more popular.

Yeah, I was trying to figger that out myself...
My theory is that its the "base" - not an RV
type guy, but most RV's don't have regular
Edison (standard bulb) base sockets, do they ?
For me if was great - took a few of them clamp
on aluminum cone lights you see at HomeDepot
or the hardware store, hacked off the plugs, and
put on cigarette lighter plugs. Use em in/on/with
the truck and boat. They are just great! - love em.
 
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