Table Lamp LED Bulb Wattage

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Old 03-28-20, 10:38 AM
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Table Lamp LED Bulb Wattage

We bought a table lamp that came with a 9 watt LED Bulb. The bulb has the same shape as a regular incandescent bulb but it has a plastic skirt abound the lower half of the bulb, The skirt effectively blocks most light that would shine out the bottom of the lampshade. There is a sticker on the lamp socket that says use only 100 watt max type A bulb or 9 watt max LED bulb.

Why is the LED type bulb limited to only 9 watts. It really puts out insufficient light, I put in a 100 watt GE bulb that puts out about the right amount of light. I would like to switch to an LED bulb that provides better light but not sure if higher wattage is safe. Do they all have a skirt around the bottom that blocks light?
 
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Old 03-28-20, 10:46 AM
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The socket is rated for maximum heat. The base of a 9 watt LED bulb can get very hot.
That skirt is the power supply that runs the bulb.

I hadn't seen the 9w warning on table lamps.
 
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Old 03-28-20, 10:52 AM
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Intuitively I would say you can go up to 33 watts actual for an LED (1/3 of the incandescent wattage max).

While the wattage limitation is mainly due to heat given off, an LED also gives off some heat and LED lamps fail at lower overtemperatures compared with incandescent lamps.

Suggest a lampshade less tall, with at least 12 inches across at the bottom, and lined with aluminum foil, for increased light out the bottom.
 
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Old 03-28-20, 11:02 AM
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Don't get wattage mixed up light output (lumens). They are not equal.

Wattage is what you pay the power company, regardless of the light output! Think of it this way, any electrical item uses wattage. Your toaster, your furnace, any motorized item, and none of these give off light.

Lumens is the amount of light output. Almost all bulbs, be it LED, incandescent, or those squiggly things (can't think of the name right now) all give lumen output for a given wattage.

What you might think of as less light from a 100 watt incandescent bulb vs the equivalent LED at about 25 wattage is the color. Most LED's will be available in warm white ( a subdued yellowish or daylight similar to your typical store fluorescent light). See this site for a chart.

https://www.voltlighting.com/article...atts-or-lumens

If the lamp says max 100 watt bulb you can use any bulb LED included up to 100 wattage rating. However, an LED will produce heat at the bottom where the electronics is located and that will reduce the life of the bulb if not on a well ventilated socket.

I have no idea why it would say a max of 25 watt LED. Wattage is wattage regardless of how it is generated.
 
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Old 03-28-20, 11:22 AM
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A 9 watt LED lamp is roughly equivalent to 60-75 watt incandescent.
A 13 watt LED lamp is roughly equivalent to 100 watt incandescent.

When you stop and look at the issue..... the bulb is burning base down so that most of the heat is not in the socket. A 13 watt LED shouldn't produce that much more heat over a 9 watt unit.
 
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Old 03-28-20, 11:34 AM
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edit...Oops I misread your post.Sorry.
This post has no meaning, therefore deleted.

 
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Old 03-29-20, 01:00 PM
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Thanks for the quick replies! ,

I think you folks are correct that this new lamp will be safe with an LED bulb that is greater than 9 watts. The problem that I see now is that a LED bulb of 13 or slightly more watts will still put out poor light due to the skirt around the bottom. Is there another type of LED bulb that will work in a table lamp?
 
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Old 03-29-20, 04:34 PM
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Send us picture of the lamp.
You could put an extender on the socket and raise the bulb up. Might look funny.
 
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Old 03-30-20, 05:05 AM
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The 9 watt bulb looks just like the one here: https://www.amazon.com/Great-Eagle-E...5568542&sr=8-5
The "skirt" I mentioned in previous posts is that opaque part of the bulb that covers the lower half. Not enough light shines downward due to the skirt.

I bought the table lamp from Costco: https://www.costco.com/alton-table-l...100501113.html


 
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Old 03-30-20, 07:41 AM
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The part you're referring to is the electronics. Not much you can do about that. This type of light it meant to throw light up and out. Any bulb only throws out the main portion of light from the base and out. The only way to resolve the problem is to reverse the direction of the bulb or go back to an incandescent bulb.
 
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Old 03-30-20, 08:28 AM
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If you have enough space between the top of the bulb and the shade support, you could try one of these

Clip-on bulb adapter

with a reflector of some sort on top to bounce the light down. Maybe a small aluminum pie plate.

Or maybe a reflector can be attached directly under the shade support. (Pie plate with a hole in the center.)

It will however block all the light going out the top of the shade.
 
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Old 03-30-20, 09:07 AM
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If you look below the item on the Amazon link you gave you will see many bulb types.
Some of them do not have the same type of base set up and may be what you want.
re: Edison bulb.etc.
 
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Old 04-13-20, 02:28 PM
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A Solution

I ended up getting an extender, a 3-way splitter and some LED corn bulbs from Amazon to get better light from this table lamp.

Extender

3-way splitter

LED corn bulbs

The LED corn bulbs were an afterthought but they are only rated to 15 watts each and put out a lot of light. I thought I'd give them a try as they are pretty short and provide good clearance from the shade. Seems to work well and lots of light out both top and bottom of the shade now.













Wow those pics are big! Sorry
 
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Old 04-13-20, 03:10 PM
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Well to fix an existing brand new light you spent upwards of $45.00.
So you ended up buying $233.00 lamp al total.
I'm not saying that's bad. Not sure if I would do it.
I do admit I like that JACKYLED 3 in 1. That was worth the $10.
 
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Old 04-13-20, 03:35 PM
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Yeah, $25 of that $45 "solution" was for the corn LEDs. I probably should have just got a couple more of the 9 watt bulbs and called it good. I am a sucker for interesting stuff and the corn LEDs interested me.
 
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