Fulltiming without Solar ? - Page 2 - Fiberglass RV


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Old 12-07-2011, 08:09 PM   #15
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The second thing you can do is replace your bulbs with LEDs. I did 8 bulbs for about $30.

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Please tell me where you bought these! I only seem to find them for about $12 per bulb!

Cheers John
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Old 12-07-2011, 08:31 PM   #16
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I purchased a bunch of these on eBay. The good - they are warm white, bright & cheep. The bad - no built in voltage regulation (although some would call that an advantage since some voltage regulators built into LED lamps causes a buzz in radios, particularly AM) so I don't know how well they will hold up to a converter running at equalizer voltage (15+V).

Although my Escape came with interior LED lighting, I replaced the porch light with 2 of these & the vent hood light with one. So far no problems. You do have to find a way to add them since they are flat panels, but it would be difficult to beat the $.
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Old 12-07-2011, 08:35 PM   #17
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John,
there are all types, but the 1156 bulb is the common replacement for most of these RV lights. The next question is how many SMDs you want. there are also warm lights and cool lights, depending on what you want. I like the bright white. If you do a search on Ebay for "1156 120 smd led" or similar, you will get all the results. I bought mine from this guy and they were here in about a week from Hong Kong. I'll use him again.

Car 120 LED 3528 SMD 1156 White Fog Light Lamp Bulb 12V | eBay

Basically, you want to buy Hong Kong direct to get the good prices. The other places buy the same bulbs and mark them up. The 120s throw a very nice light for working or reading. You might want some softer ones for mood lighting . Also, be sure and check the shipping. Mine were shipped free, some others charge extra for shipping.

David
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Old 12-07-2011, 09:49 PM   #18
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Thanks for this info! I've tried those 'lifetime' bulbs - the spiral shaped ones? (maybe they are fluorescent, not sure) but they had that horrid greenish tint light. And took a couple seconds to turn on... I think the LEDs sound ideal!
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Old 12-07-2011, 11:33 PM   #19
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Thanks for this info! I've tried those 'lifetime' bulbs - the spiral shaped ones? (maybe they are fluorescent, not sure) but they had that horrid greenish tint light. And took a couple seconds to turn on... I think the LEDs sound ideal!
Jool, even the compact flourescents come in heat ratings now, IE warm and cool white. I prefer my light white white, so the bright LEDs suit me well. The "warmer" colors are more yellow, and that may be what you are describing. The CF bulbs are not 12 volt anyway. The LEDs are.

David
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Old 12-08-2011, 10:44 AM   #20
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Minor point - there are 12V compact fluorescent lamps - check AB Lamps for example. That said, I'd stick with LEDs
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Old 12-08-2011, 11:06 AM   #21
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Minor point - there are 12V compact fluorescent lamps - check AB Lamps for example. That said, I'd stick with LEDs
Thanks Jon
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Old 12-08-2011, 08:33 PM   #22
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Thanks! Looks like I don't have to live in a green tinted light after all.
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Old 12-09-2011, 11:12 AM   #23
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John,
there are all types, but the 1156 bulb is the common replacement for most of these RV lights. The next question is how many SMDs you want. there are also warm lights and cool lights, depending on what you want. I like the bright white. If you do a search on Ebay for "1156 120 smd led" or similar, you will get all the results. I bought mine from this guy and they were here in about a week from Hong Kong. I'll use him again.

Car 120 LED 3528 SMD 1156 White Fog Light Lamp Bulb 12V | eBay

Basically, you want to buy Hong Kong direct to get the good prices. The other places buy the same bulbs and mark them up. The 120s throw a very nice light for working or reading. You might want some softer ones for mood lighting . Also, be sure and check the shipping. Mine were shipped free, some others charge extra for shipping.

David
I know I want the soft or warm light, similar to the color of an incandescent bulb. What is the difference between leds with say 9 SMDs versus say 36 SMDs, other than the number? Do more SMDs mean more lumens?

Cheers John
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Old 12-09-2011, 11:30 AM   #24
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I know I want the soft or warm light, similar to the color of an incandescent bulb. What is the difference between leds with say 9 SMDs versus say 36 SMDs, other than the number? Do more SMDs mean more lumens?

Cheers John
More SMDs = more light.....sort of.....usually. It seems to not be very linear. Part of it is the way the light is focused. More focus will make it appear brighter. I'm not sure the eye really detects the light linearly either. It could also be the quality of manufacture. I don't know for sure. I have three types of lighting basically. Task lighting is bright. I want to see what I'm reading, or how much salt is going on my eggs. Then I have a couple of softer lights for when I'm using the computer or talking on the phone. I have one very dim night light just to keep me from stepping on a dog in the middle of the night. It's personal and you will acquire your own preferences with a little experimenting.

David
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Old 12-09-2011, 11:51 AM   #25
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Doubles

I agree with the need for different lighting for different fixtures.

Ginny frequently reads sitting on the front couch so I doubled the output at this one fixture. The LEDs in the six LED module are of similar brightness to the 104 LED lamp.
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Old 12-09-2011, 12:34 PM   #26
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I know I want the soft or warm light, similar to the color of an incandescent bulb. What is the difference between leds with say 9 SMDs versus say 36 SMDs, other than the number? Do more SMDs mean more lumens?

Cheers John
Probably far more than you want to know about light, but ...

One of the difficulties is there are many different SMDs. SMD stands for Surface Mounted Device. There are many different electronic components that are SMDs, one type is a LED. They are usually identified by a number, and different SMDs produce different amounts of light, different color temperatures, etc. The only way you can compare how much light a lamp will produce by the number of SMDs is if they are the same model. Otherwise, a 9 SMD lamp may produce more light than a 24 or 36. Since many suppliers do not include the model # of the SMD they use, it's tough to compare.

The best method of comparing light output is by looking for the Lumen specification. That is the total light produced by the lamp. If you are purchasing a fixture that includes the lamp you may find the specification of light output is Lux.

Lux describes the amount of light on a surface. The important point when comparing fixtures by Lux is distance & coverage area. Two fixtures with the same Lumen lamp may produce very different Lux because one spreads the light over a wider area. This is why a reading light (with a narrow beam) seems much brighter than a general area fixture with the same Lumen lamp.

If you are concerned about color, Warm White is the description most often used to compare to an incandescent lamp. The technical description for the color attributes of a lamp are complex, but an incandescent lamp produces a color temperature of somewhere between 2800K and 3200K and a CRI of 100.

Color Temperature is given in degrees Kelvin (a scale that starts at absolute zero as 0K and shifts from infrared to red through the visible spectrum to violet and beyond (a clear blue sky without the sun is around 20,000K). A cool white fluorescent lamp produces light with a color temperature around 6000K.

Basically, Color Temperature is a method of describing the color an object will radiate if it is heated until it glows. It is more technical than that, but a tungsten filament will actually be at the color temperature while other types of light sources "manufacture" the color without actually being at that temperature.

CRI (Color Rendering Index) is a number between 1 & 100 with 100 being the equivalent of an incandescent lamp. As the number drops, the source produces light that does not render colored objects correctly. For example a Sodium Vapor lamp has a CRI of around 24. That is why your red vehicle and lips look black in the parking lot.

CRI specifications are rarely given for LED lamps, but most of them are pretty good. CFLs sometimes have very poor CRIs which is why there are complaints about "green" colors.

Again, far more than you asked for, but I'm a retired teacher & once I get started it is difficult to stop!
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Old 12-09-2011, 12:36 PM   #27
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Jon, totally illuminating! Thanks!
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Old 12-09-2011, 09:42 PM   #28
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Probably far more than you want to know about light, but ...\ ..........
Jon, great descriptions of lumens, lux, CRI and other items to consider. Thank you. Excellent post.

Sherry

(I abbreviated the post quote in consideration of our new short "bandwidth", and scrolling issues. Anyone interested can go back and read his full post.
S.
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