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Author Topic: LED Lighting  (Read 8793 times)

Offline youknowwho

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LED Lighting
« on: January 04, 2009, 11:34:15 AM »
How bright and how efficient are 12 volt led rope lights? Will they make decent lighting for a whole room in my bus? And can I make a decent reading or work light for under counter lighting by clustering led's? Next how long can led lights run on the small hand crank generators? I found some plans on making hand crank generators out of cordless drills which I have 3 that don't I have batteries for or they are shot. I am working on making my bus about 90% green and capable of running off grid for very long periods.

Offline Ednj

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Re: LED Lighting
« Reply #1 on: January 04, 2009, 11:52:55 AM »
How bright and how efficient are 12 volt led rope lights? Will they make decent lighting for a whole room in my bus? And can I make a decent reading or work light for under counter lighting by clustering led's? Next how long can led lights run on the small hand crank generators? I found some plans on making hand crank generators out of cordless drills which I have 3 that don't I have batteries for or they are shot. I am working on making my bus about 90% green and capable of running off grid for very long periods.
>
Not sure Ron but I think How long is a China man not sure about verylong.
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Offline Sean

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Re: LED Lighting
« Reply #2 on: January 04, 2009, 12:19:37 PM »
How bright and how efficient are 12 volt led rope lights? Will they make decent lighting for a whole room in my bus? And can I make a decent reading or work light for under counter lighting by clustering led's?

LEDs, in general, are very efficient.  But the efficiency of any particular light, including various makes of rope light, depends greatly on how the manufacturer chose to build it.  More LEDs and fewer (and/or smaller) resistors is more efficient than fewer LEDs with bigger resistors, but resistors are cheaper than LEDS, so many 12-v fixtures are not as efficient as they could be.  You can fix this by rolling your own.

Quote
Next how long can led lights run on the small hand crank generators?

Umm, for as long as you are cranking the generator.  A better set of questions would be how long can a specific set of LED fixtures run on a specific amount of battery, and then how much hand-cranking would be needed to add that amount of energy to the battery.  Again, this varies widely with the efficiency of the fixtures involved, and the output of the hand-crank generator.  I'm afraid there is no substitute for developing the numbers and then doing the math.

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Offline youknowwho

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Re: LED Lighting
« Reply #3 on: January 04, 2009, 04:26:53 PM »
Ok a different approach. What would be a good start battery wise and hand crank generator ? I found last night a website that had LED rope lighting for $2.00 per foot with a led every 2 inches I believe but did not bookmark the page and now I can't seem to find it. What I would like to do is possibly have one battery/crank gen. for each length or segment of rope light in each room or a way to switch off some of the unnecessary lighting. Which ever is better. Then for each section of work area have their own battery/crank if necessary. Then I would do this in the 3 sections of my bus. Kitchen/LR Bath and Bedroom. This may be just unpractical but  a thought I'd like to know if it would work and how well. There are several spot lights that work on this principle so those may be a starting point or source of the crank generators.

Offline boogiethecat

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Re: LED Lighting
« Reply #4 on: January 04, 2009, 04:34:03 PM »
Instead of rope lights, check these out. I just put some in my bedroom along with three 12v dimmers from ebay and they are no less than amazing.
The strips are RGB so you can instantly control the color of the room, and it's both bright and beautiful!

15' strips RGB:  http://www.lck-led.com/p330/5M-Ultra-Slim-5050-SMD-RGB-Flexible-Led-Strip/product_info.html

Dimmers (takes three): ebay     Item number: 360121569075   

Both companies are reliable, I've used them many times and they ship quickly, product is high quality
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Offline DebDav

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Re: LED Lighting
« Reply #5 on: January 04, 2009, 06:30:59 PM »
I have a roll of rope from  www.1000bulbs.com

12VDC clear bulbs.  with connectors.  roll provides many applications.

Offline circusboy90210

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Re: LED Lighting
« Reply #6 on: January 04, 2009, 06:38:11 PM »
How bright and how efficient are 12 volt led rope lights? Will they make decent lighting for a whole room in my bus? And can I make a decent reading or work light for under counter lighting by clustering led's? Next how long can led lights run on the small hand crank generators? I found some plans on making hand crank generators out of cordless drills which I have 3 that don't I have batteries for or they are shot. I am working on making my bus about 90% green and capable of running off grid for very long periods.
humans don't pollute a much as nature by far, one volcanoe dwarfs the whole history of industrial revolution & more. currently there aer more than 80,000 active plus undersea gas vent , & anthills. insects which out weigh man 72 -1 by lbs put outway more co2.
« Last Edit: January 05, 2009, 07:00:34 AM by HighTechRedneck »

Offline WEC4104

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Re: LED Lighting
« Reply #7 on: January 04, 2009, 07:27:20 PM »
LED rope lighting, or for that matter LEDs in general, are very efficient. However, most of the reasonably priced stuff will produce modest light output.  It is great for general room lighting, enabling you to see where you are walking, or as background lighting while watching TV, etc.   Think of it as "mood lighting".  Most rope lighting (LED or conventional) is decorative or for producing a soft glow.  Not the type of lighting for you to use for reading.

Step up in price, and you will find high output LEDs, with a spot beam that is suitable for reading and close work.  Not too many folk are going to brightly light an entire room with LEDs, however.  I think the key would be to strike a balance.  Rope light for for general lighting, with a few high intensity units added in for reading and close work.

As mentioned in a previous post, the battery is the key to determining the light output that can be supported. Hand cranking a retrofitted hand drill?  While I appreciate your desire to be green, I am having difficulty reconciling it with the real world conditions.  Firing up your engine for 15 minutes, you could produce the equivalent of hank cranking for many hours.  I don't get it, and I think I'd install a solar panel before I would sit around hand cranking a drill.

If you're going to be dumb, you gotta be tough.

Offline youknowwho

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Re: LED Lighting
« Reply #8 on: January 04, 2009, 08:41:09 PM »
LED rope lighting, or for that matter LEDs in general, are very efficient. However, most of the reasonably priced stuff will produce modest light output.  It is great for general room lighting, enabling you to see where you are walking, or as background lighting while watching TV, etc.   Think of it as "mood lighting".  Most rope lighting (LED or conventional) is decorative or for producing a soft glow.  Not the type of lighting for you to use for reading.
I know it is not for reading as I mentioned that in the original post. I'm just wondering is it enough lighting for general sight and not too dark to see the remote buttons and that type of thing.

Step up in price, and you will find high output LEDs, with a spot beam that is suitable for reading and close work.  Not too many folk are going to brightly light an entire room with LEDs, however.  I think the key would be to strike a balance.  Rope light for for general lighting, with a few high intensity units added in for reading and close work.

I mentioned the cluster type led's for that

As mentioned in a previous post, the battery is the key to determining the light output that can be supported. Hand cranking a retrofitted hand drill?  While I appreciate your desire to be green, I am having difficulty reconciling it with the real world conditions.  Firing up your engine for 15 minutes, you could produce the equivalent of hank cranking for many hours.  I don't get it, and I think I'd install a solar panel before I would sit around hand cranking a drill.

Solar panels are expensive and don't work at night. I may play with them at a later time.
It's not about convenience it's about doing something different. I think some of you do some oddball things to or on your bus but it's not my call to question why. I want to experiment with some things. some of those lights like the spot light with a crank works 30 minutes on 1 minute of cranking, I don't find that too inconvenient for 30 minutes of work light in my bus. And the whole idea of this is to keep from running my bus for even 15 minutes adding to the carbon footprint and everybody knows running an engine for that short period is not good for them. By the way, Who is Hank and how can I get "Hank cranking for many hours?"  ;) By the way there is a bigger picture here that I'm aiming for and then it will all make sense then.
« Last Edit: January 04, 2009, 08:45:08 PM by youknowwho »

Offline HighTechRedneck

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Re: LED Lighting
« Reply #9 on: January 05, 2009, 05:18:14 AM »
Gentlemen, I cleaned this thread up to get it out of a danger zone and back on topic.  It is an interesting topic, so let's keep it on track.

Offline Van

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Re: LED Lighting
« Reply #10 on: January 05, 2009, 06:55:37 AM »
Agreed!,too easy to get distracted :-*.YKW ,I have a rope light set up in my shop ,strictly for ambient lighting but seems to give off enough light to see my way around(20x30) without flipping on the overheads.I would imagine in the confines of a bus the illumination would be substantial,i'll have to try that. :)
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Offline JimC

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Re: LED Lighting
« Reply #11 on: January 05, 2009, 07:30:43 AM »
youknowwho
I have LED lights in my bus and so far I love them. I have most of them set along the ceiling for ambient or indirect lighting. At the points that I need brighter lights like over the stove or sink I used more. There are soo many types of LED's you will go broke buying each type and trying them out.

I like the LED rope lights for indirect lighting or mood lighting, they light up enough to see everything in the bus and watch tv or just visit just fine.

I went one step further and placed the lights (pics in link below) throughout the bus for enough lighting to be able to see a little more than the rope lighting. From my testing the led's i used are about 2-3 times the light as the ropes lights were. I can do anything I need to other than tasks that need a lot of light like reading or cooking with just LED's

Keep in mind if you go the route I did for ease of installation there are numerous styles of MR16 LED bulbs, I used the wide angle for the general room lighting, for task lighting you want the spot lights, they produce much brighter light in a much smaller footprint. You have to buy one or two of each and experiment to see what fits your bus.

The nice thing about the LED's is that I can turn them all on at once and only use the energy of what would amount to one 40 - 50 watt incandescent bulb and I have more even lighting than I would have if I had one conventional bulb in the middle of my living area. ALso, with the LED's I am working directly off the house battery and not through the inverter. As far as the wind up generator, give it a shot, it could work great. There is another thread on LED's below.

http://www.busconversions.com/bbs/index.php?topic=5407.msg50485#msg50485

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Offline gumpy

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Re: LED Lighting
« Reply #12 on: January 05, 2009, 10:00:13 AM »
I found last night a website that had LED rope lighting for $2.00 per foot with a led every 2 inches I believe but did not bookmark the page and now I can't seem to find it.

Do a ctrl-h on your browser and show the history. Find the section for Jan 3, and you should be able to relocate the page you had found.

Then post the link here.

« Last Edit: January 05, 2009, 10:02:34 AM by gumpy »
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Offline youknowwho

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Re: LED Lighting
« Reply #13 on: January 05, 2009, 10:39:49 AM »

Offline WEC4104

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Re: LED Lighting
« Reply #14 on: January 05, 2009, 07:27:57 PM »
I'm just wondering is it enough lighting for general sight and not too dark to see the remote buttons and that type of thing.[/i]

Sorry, but I have to ask the question ...  If you want enough light to see the remote, what is the remote controlling (a TV?), and what is powering that device?  Seems like the power consumption of the LEDs will pale in comparison with most electronics large enough to have a remote.
If you're going to be dumb, you gotta be tough.