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Save Money by upgrading from LCD to LED Monitors

Save Money by upgrading from LCD to LED Monitors

Save Money by upgrading from LCD to LED Monitors

Posted on Mar 30, 2012 by Author

If you read my previous blog post, you know that I was having a little trouble with my Samsung 2493HM Syncmaster LCD monitor. I actually have 2 of them on my work station. I finally gave up on trying to repair it after the repair failed twice. I have upgraded to Dell 24" LED monitors. LED monitors cost a bit more than their LCD counterparts, but the cost savings in energy are worth it. I break out the kill-a-watt meter and put my old monitors against my new ones.
 

What is the difference between LED and LCD monitors?

Traditional LCD monitors are back illuminated with fluorescent tubes. Most of the energy consumption of these monitors is based on the back lighting. Fluorescent tubes work by running a high voltage across a gas. Your LCD monitor has a transformer that steps up the voltage from 120 Volts to 20,000+ Volts, then it runs this voltage across the many tubes that are located behind the LCD display. This transformer gives off lots of heat ( wasted energy ). Plus like most Fluorescent tubes they don't last forever. Eventually they go bad and have to be replaced.
 
LED monitors are back illuminated by LED diodes. LEDs use only a fraction of the electricity that Fluorescent tubes use. They run at a lower voltage, and don't require any huge transformers. They also last longer and generate much less heat. LED monitors cost most, but they also are much more energy efficient than LCD monitors.
 

LCD vs LED Energy Consumption

The main thing I want to focus on is the energy savings by using an LED monitor rather than an LCD monitor. Next I will show you 3 monitors and their energy consumption using my Kill-a-watt meter, which shows the actual energy consumption.
 

Samsung SyncMaster 2493HM LCD monitor Energy Consumption

Samsung SyncMaster 2493HM LCD monitor

Samsung SyncMaster 2493HM LCD monitor Energy Consumption
The Samsung 2493HM uses about 77 Watts sitting idle with just my background displayed.
 

Dell U2412M LED monitor Energy Consumption

Dell U2412M 24 inch LED monitor
Dell U2412M 24 inch LED monitor Energy Consumption
The dell uses only 27 Watts sitting idle with my background displayed

Samsung SyncMaster 305T LCD monitor Energy Consumption


Samsung SyncMaster 305T 30 inch LCD monitor

Samsung SyncMaster 305T 30 inch LCD monitor Energy Consumption
The Samsung uses 140 watts sitting idle while displaying my desktop.
 

How much money will I save by upgrading from my LCD monitors the LED monitors?

These figures are based on using my LCD monitors 14 hours / day ( this is realistic for me! )
 
ModelWattsKWH
Per Day
KWH
Per Month
KWH
rate
Cost
per Month
Samsung 24" 2493HM LCD Monitor x 21542.15664.68.089$5.75
Dell 24" U2412M LED Monitor x 2540.75622.68.089$2.02
Samsung 30" 305T LCD Monitor x 11401.96058.80.089$5.23

By upgrading from my 2 x 24" Samsung LCD Displays to the 2 x 24" Dell LED Displays I will save about $3.73 per month. Over the course of a year I save $44.76. Keep in mind this is based on my current electric rate of 8.9 cents per KWH. If you live in California or one of those states where electricity is not so cheap, then the savings could be much greater.

The cost for the Dell monitors was $339 each via NewEgg.com ( free shipping and no sales tax ). The premium cost was mostly do to these being 16:10 Monitors rather than 16:9. This means that instead of the typical 1080 resolution ( 1920 x 1080 ) these support 1920 x 1200. Yes the additional 120 pixels of space is worth it. I rotate these 90 degrees for use in coding.

Triple LED and LCD monitor workstation

Summary

Making the upgrade from LCD to LED monitors was probably one of the best upgrades I have made in a long time. Now its just a matter of finding a 30" LED monitor to replace my old Samsung. The problem is Displays that run 2560 x 1600 resolution don't come cheap.

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Discussion

Victor | May 19, 2012 12:30 AM
Have you been able to find an LED 30"  I can't -  I'm using a Dell 3007wfp - but I'm really wanting the LED for lower power use and faster screen refresh.   All I've been able to find so far are Dell and HP IPS panel LCD's that are using the same amount of power, but drop from 11ms refresh to 7ms refresh rate.    The best 27" I can find is an ASUS 2ms refresh, but limited to 1920x1080 resolution -  I just hate losing that extra resolution.    I don't understand why nobody is making a high resolution 30" monitor.
v74 | May 30, 2012 11:00 PM
I agree with Victor.
Seem like no brand will come out with high-res LED 30" monitor.

Apple 27" LED is great but the thunderbolt port stop PC users to buy it.

My Samsung 305T Plus just dead after 3.5 years of use.
It's too short life in my opinion and it warranty only 3 years, so I have to pay a lot to fix it. . . . and I decide to buy a new monitor instead.

For now. . . if I want to get 2560x1600 . . . LCD still be the only way to go.
Dell U3011 with IPS panel . . . seems to be a good one but it would be great if it is LED not LCD monitor.
:(

Victor | May 31, 2012 1:59 AM
I ended up buying (3) 24" LED monitors from Benq - RL2450HT - and set them up side by side in Portrait Mode using my Radeon 6870 Crossfire cards in an Eyefinity display - for a total resolution of  3240x1980 - The Benq monitors were a nice solution since they have stands that allow you to rotate the screens to portrait mode, and therefore don't have to spend a bunch of money buying a multi monitor stand.    Total out of pocket $600 cash, shipped to my door.     2ms grey to grey refresh, and a total power consumption of just 45 watts, compared to the 250 watts my single Dell 30" LCD was using.   It takes a little getting used to, but its a nice solution until someone steps up and makes a good 30" or bigger dedicated LED computer display.
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