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Old 02-05-2011, 11:57 AM   #1
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LED light bulbs


My house has some outdoor lights installed using GU10 50W 110V halogen bulbs. To save electricity, I wish to replace them with LED bulbs. Most of the LED 110V bulbs are 3W or 5W only. How's these 3W or 5W LED compare with the 50W halogen bulb on brightness? Some LED bulbs say they has 30xLED, some with 48xLED, but all says they only 3W or 5W. What's the different? Hope someone can tell me all these. I don't have much knowledge on electricity. Thanks.

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Old 02-05-2011, 12:12 PM   #2
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to find the respective incandescent or halogen light output of a LED, multiply the wattage by 6.......Flourescents are 4x

The problem with halogens is that they are a bit more intense than their equivalent wattage standard incandescents.....I would say that you would want about a 10w LED or more to get the equivalent light output....The problem you will run into is that you need a "PAR" lamp which is basically an encapsulated reflector, so therefore you need an OUTDOOR rated LED....those puppies are a bit expensive.....

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Old 02-05-2011, 01:00 PM   #3
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Originally Posted by ccpyue View Post
My house has some outdoor lights installed using GU10 50W 110V halogen bulbs. To save electricity, I wish to replace them with LED bulbs. Most of the LED 110V bulbs are 3W or 5W only. How's these 3W or 5W LED compare with the 50W halogen bulb on brightness? Some LED bulbs say they has 30xLED, some with 48xLED, but all says they only 3W or 5W. What's the different? Hope someone can tell me all these. I don't have much knowledge on electricity. Thanks.
Ayuh,... I just put an led spotlight on the back of the house,...
It's beside a halogen...
The led is brighter, 'n whiter than the 1 next to it...

Don't remember the wattage, but remember thinkin' it didn't look like much of a spotlight....
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Old 02-05-2011, 05:06 PM   #4
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Ayuh,... I just put an led spotlight on the back of the house,...
It's beside a halogen...
The led is brighter, 'n whiter than the 1 next to it...

Don't remember the wattage, but remember thinkin' it didn't look like much of a spotlight....

Can you tell me where you buy the LED light bulb? and how much is it?
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Old 02-05-2011, 08:56 PM   #5
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Ayuh,... It was about $15.bucks at Sam's Club...
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Old 10-12-2011, 08:49 AM   #6
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you need approx 6W led (6 x 1w or 3 x 2W) avoid 30 48 mini led on a lamp, those are not made for lighting and are a lot less bright that 1w or 2w leds

i have some 4w units at my house and they equal approx 35w gu10 lamp
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Old 10-12-2011, 08:58 AM   #7
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Can you tell me where you buy the LED light bulb? and how much is it?
I bought the LED SMD bulbs from ebay. It costs in the range of $4- to $15 depend on the watt and number of LED SMD on the bulbs.
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Old 10-12-2011, 09:47 AM   #8
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LED light bulbs


Quote:
Originally Posted by Bondo View Post
Ayuh,... I just put an led spotlight on the back of the house,...
It's beside a halogen...
The led is brighter, 'n whiter than the 1 next to it...

Don't remember the wattage, but remember thinkin' it didn't look like much of a spotlight....
Leah noted that they do not attract bugs.
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Old 10-12-2011, 10:55 AM   #9
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ddawg16, and the bad thing is, there has not been anything posted recently in the auto forum regarding rad's.
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Old 10-12-2011, 11:09 AM   #10
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ddawg16, and the bad thing is, there has not been anything posted recently in the auto forum regarding rad's.
Post is gone now....so I guess the problem is solved.....if there had been an embedded link...then spam.....we see that a lot over on another forum....

Quote:
Originally Posted by LyonsElecSupply View Post
to find the respective incandescent or halogen light output of a LED, multiply the wattage by 6.......Flourescents are 4x

The problem with halogens is that they are a bit more intense than their equivalent wattage standard incandescents.....I would say that you would want about a 10w LED or more to get the equivalent light output....The problem you will run into is that you need a "PAR" lamp which is basically an encapsulated reflector, so therefore you need an OUTDOOR rated LED....those puppies are a bit expensive.....
I don't want to create a long thread on that aspect....but lighting is sort of a hobby of mine and I have to disagree in general with those numbers.

On average (let me stress average), LED's are about par with CFL's...if you start comparing LED lights with a T5 or T8 bulb....LED's lag quite a bit.

With that said....it's important to distinguish one inportant aspect of LED vs CFL or halogen....the LED tends to send most of it's light straight out to the top......whereas you get more even lighting from an incandescent of CFL. In other words, looking straight on at an LED vs CFL or incandescent, the LED will look brighter.

So, in a recessed can where the light is directed down....LED's are a great solution if you can get then cheap enough....they do have the advantage of being dimmable using traditional dimmers.

I find it funny that the initial 100K hour claims have quickly changed to 25K hours......about the life of 3 CFL's......at 5x the cost.

LED's are making progress.....I'm still not sure that they are the holly grail of lighting....I think that is still waiting to be invented.
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Old 03-11-2014, 07:33 AM   #11
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LED Lights changed the trend of bulbs. It has a big market share because of it's efficiency and low power consumption. I personally prefer LED Lights on T5 or T8 in my own home.
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Old 03-11-2014, 10:10 PM   #12
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LED light bulbs


With lighting technology advancing so much these days people need to quit looking for bulbs of a certain wattage. People need to start talking in terms of lumens when they are looking for lighting equipment. Actually, they also need to start talking about the temperature of the lighting, temperature refers to the color of the light. 2700k is basically what was considered soft white and 6000k is what was considered bright white. Of course there are other temperature colors in between. If people start thinking about lighting in these terms it's much easier to transition from Incandescent to Halogen to CFL to LED or whatever!

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