|
Colour temperature |
- 2,500
to 9000 K |
- full
range from warm to very cold colour |
|
Luminous efficacy |
- 20 to
80+ lumens per watt |
-
newest generation of products (80+) have the highest efficacy of all light
sources |
|
Lamp
life (hours) |
-
50,000 to 100,000 (typical 50,000) |
-
longest life of all light sources |
|
|
(LED
lights are considered to have failed when they lose 50% of their original
output, considered by the industry to be between 50,000 and 100,000 hours) |
SSIC
uses 30,000 – 50,000 hours in price / performance / break-even analysis |
|
General |
- Now
have colour temperature capabilities |
- Warm
colours still being refined, evolution will be ongoing, neverending. |
|
Lamp
configuration |
- Point
source and distributed source |
- Best
employed from higher to lower angles for general illumination requirements |
|
Lamp
watts |
- .1 to
8.5 W individually |
-
Lumieres can have over 100 W nut replace products with many times multiple
Wattage |
|
Lamp
lumen |
- 30%
to 50% depreciation factor (LLD) |
|
|
Warm-up time |
-
Instant |
|
|
Restrike time |
-
Instant |
|
|
Lamp
cost |
- Low
to high (depending on lumen output) |
-
Initial cost mostly, but not always, higher than incandescent equivalent |
|
|
-
lowest operating cost |
Typically 90% less operating cost than incandescent |
|
Main
applications |
-
Merchandising, display lighting |
|
|
|
-
General illumination |
|
|
|
-
Application specific illumination such as no or low heat requirement |
|
|
|
-
Ambient lighting (restaurants) |
|
|
|
-
Fail-safe lighting requirements |
|
|
Robustness |
-
Immune to vibration or shock |
No
delicate filament to break |
|
Energy Efficiency |
- +99%
of energy generates illumination; ~1% heat |
-
Newest hi-power lamps generate somewhat more heat, but still less than 3%
of energy consumption |
