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McLED Drivers
Close up of LED drivers and LEDs in the McDonalds sign.
Keywords: Gear

McLED Drivers

Close up of LED drivers and LEDs in the McDonalds sign.

CIMG6132.JPG CIMG4968.JPG CIMG4970.JPG CIMG3735.JPG CIMG3533.JPG
File information
Filename:CIMG4970.JPG
Album name:rlshieldjr / Low Voltage
Keywords:Gear
Filesize:77 KiB
Date added:Nov 22, 2011
Dimensions:480 x 364 pixels
Displayed:190 times
Color Space:sRGB
Contrast:0
DateTime Original:2011:11:13 12:37:26
Exposure Bias:0 EV
Exposure Mode:0
Exposure Program:Program
Exposure Time:1/800 sec
FNumber:f/5.6
Flash:No Flash
Focal length:6.2 mm
ISO:64
Light Source:Unknown: 0
Make:Casio Computer Co.,ltd.
Max Aperture:f/2.8
Model:EX-Z9
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=9627
Favorites:Add to Favorites

Comment 1 to 17 of 17
Page: 1

rjluna2   [Nov 22, 2011 at 03:52 PM]
A "ballast" for these Lighting Emitting Diode Razz Rolling Eyes

Now, I wonder about the lumens maintenance would last Razz
gailgrove   [Nov 22, 2011 at 08:30 PM]
LED signs actually seem to be pretty good, they are a lot more consistent than fluorescent and don't flicker. This is an application where I support LEDs.
A_lights   [Dec 08, 2011 at 02:26 AM]
our McDonalds sign has part of it out already! its less then 2 months old and also some LED strips on the building side have failed , however the LED parking lot lights are fine
streetlight98   [Dec 08, 2011 at 02:30 AM]
I hope you're not to surprised. Razz Those LED drivers are very low quality. I do like LED signlights for letters, but for the box-shaped signs, the fluorescent tubes just look better in those IMO.
A_lights   [Dec 08, 2011 at 02:33 AM]
they looked ok , but not nearly as even as a white neon or fluorescent would do

but yeah i like boxed signs with the cutout letters the best
on a side note, I love big Macs! Don't care how unhealthy they are Shocked Razz
Form109   [Dec 08, 2011 at 04:34 AM]
White Neon?
A_lights   [Dec 08, 2011 at 01:06 PM]
Yes , they're basically cold cathode Fluorecent
TiCoune66   [Dec 08, 2011 at 04:40 PM]
Argon alone can produce UVs as well, so maybe some white neons don't use any mercury like a fluorescent does.
SeanB~1   [Dec 08, 2011 at 05:12 PM]
White is easiest to make with mercury as the excitation source. White neon here generally uses this, instead of argon. Blue light with a white phosphor coating.
Form109   [Dec 08, 2011 at 08:39 PM]
would someone care to clarify this white neon?...i've never heard of it.
streetlight98   [Dec 08, 2011 at 09:39 PM]
@ A_Lights, I've honestly never had a BigMac. I have to watch my figure. Razz I can look at food and i'll gain a pound. Mad Laughing
Form109   [Dec 08, 2011 at 10:38 PM]
Figure?..women have figures,men have forms. Razz

really i don't think there's any healthy fast food.
GullWhiz   [Dec 08, 2011 at 10:54 PM]
White Neons aren't really neon glowing white..or isn't even technically neon.... to be technical they are just basically tubing that has fluorescent phosphor with argon and mercury (same stuff inside fluorescent lights and coated mercs) and they are in a CCFL form (one contacts on each side pretty much)

The clear tubing that light up orange however are the true neon!!! But the other colors...most of them, the purple, the yellow, the blue, the green are basically fluorescent phosphor with argon and mercury inside......but I have heard pink did have neon in them......certain colors must use argon instead of neon while there's some that actually uses neon...

Why do we still call some of those neons instead of "Argon Signs" beats me.....but it was for many years well known to be "neons" because of the first orange ones they first used in the 1920s or 1930s....but the color ones came a bit later and is kinda a technological innovation in neon lighting....
streetlight98   [Dec 08, 2011 at 11:07 PM]
"Figure?..women have figures,men have forms.

really i don't think there's any healthy fast food."

Okay, okay, I'm overweight then. Rolling Eyes Razz
GullWhiz   [Dec 08, 2011 at 11:11 PM]
Stay in topic......and guys....I must announce I stopped eating McDonald's for past 6 months or so and been eating Subway and Chick-fil-a instead (which are actually healther....) and I have went on a lower calorie a day diet and I've already lost 25 pounds in 4 months!!! I now look good!
Form109   [Dec 08, 2011 at 11:26 PM]
thanks for clarifying the "white neon" gull.
SeanB~1   [Dec 11, 2011 at 04:20 AM]
I had a lot of pink neon filled ( but with a pink phosphor coating to filter the red to pink) signage at work, but last week it was changed to a boring box ( Neon maintenance was becoming an issue, exposed tubing tends to die after a while from stress) and all i have left is the one 7500V transformer and 4 segments of pink.

Comment 1 to 17 of 17
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