|LED DISPLAY||COLOR INCANDESCENT SIGN|
|Technology Base:||State-of-the-art semi-conductor.||Conventional light bulbs.|
50,000 hours half life.
On average 10+ years.
|On average a few thousand hours.|
High (typical with semi-conductors)
Low (typical with light bulbs)
Susceptible to vibrations.
|Power Consumption:||1W to 1.5W per pixel, maximum.||
5W/8W per bulb (wedge base).
20W/32W per pixel (4 lamps).
|Electricity Cost:||1X||~10X or more|
|Maintenance Cost:||Preventive maintenance.||
Requires regular servicing to replace failed lamps.
Costs can easily amount to more than $3.00 per lamp per year.
|Weight:||Lighter: lower cost for structure and installation.||Heavier: higher cost for structure and installation.|
|Color Shades:||256 and up||256 maximum|
|Color Illumination:||Pure and sharp, at narrow-band wavelength.||Impure with painted color, at wide-band wavelength.|
Excellent - smaller pixel spacing with
only one cluster per pixel.
Poor - larger pixel spacing with
4 lamps required per pixel.
|Video Display:||High definition at 60 frames/sec.||Low definition at 5 frames/sec.|
|Software:||Off-the-shelf: powerful, easy to use and learn, inexpensive.||By manufacturer: expensive, difficult to learn, not easy to upgrade.|