Color Temperature is a characteristic of visible light that has important applications in lighting, photography, videography, publishing, manufacturing, astrophysics, and other fields. The color temperature of a light source is the temperature of an ideal black-body radiator that radiates light of comparable hue to that of the light source. |
Color temperature is conventionally stated in kelvin, having the unit symbol K. To illustrate better this point, we introduce an accompanying table of comparisons between different light sources. |
|
 |
| Light Source |
Temperature (K) |
| Candle flame |
1.925 |
| Sodium vapor lamp |
2.200 |
| 100W Incandescent light bulb |
2.800 |
| Halogen Bulb |
3.400 |
| Glow-discharge tube |
3.800 |
| Horizon daylight |
5.500 |
| Electronic flash |
6.000 |
| Daylight, overcast |
6.500 |
|
|
| LED bulbs advantages: |
- consume up to 80% less energy than conventional incandescent bulbs
- high efficiency - current LEDs can produce 100 lumens using just 1 watt of power
- small size
- resistance - from CFL fluorescent bulbs, LED bulbs are harder to destroy (shock resistance)
- cost savings are guaranteed for product lifetime
- lifespan of at least 10 years (vs. 1-2 years for conventional incandescent bulbs)
- risk of burns is very reduced because of the low operational temperature
- withstand frequently on/off operations
- light at maximum intensity immediately after switching on
- offer a greater spectrum of light (light temperature)
- provided light is clear, strong or weak, as the case
- not containing mercury, an advantage if they relate to neon
|
| LED Bulb: SDBi-001 (Indoor LED Bulb) |
|
Technical Parameters |
| Luminous Flux (Tj=70°C, Ta=25°C) |
2.560 Lm |
| Light Source: |
30 W |
| Input Voltage (VM): |
85-265VAC 12-24VDC |
| Replacing: |
105 W CFL |
| IP Rating: |
IP60 |
| Beam radius / Light dispersion: |
360° |
| Color Temperature (k): |
Cream-coloured (2.700~3.800K) / Natural white (4.000-5.000K) |
| Dimensions: |
Diameter-90mm * Length 258mm |
| Weight: |
0,58 Kg |
| Socket Type: |
E40 / E27 |
|
| |
| LED Bulb: SDBi-002 (Indoor LED Bulb) |
|
Technical Parameters |
| Luminous Flux (Tj=70°C, Ta=25°C) |
4.600 Lm |
| Light Source: |
40 W |
| Input Voltage (VM): |
85-265VAC 12-24VDC |
| Replacing: |
150 W CFL |
| IP Rating: |
IP40 |
| Beam radius / Light dispersion: |
360° |
| Color Temperature (k): |
Cream-coloured (2.700~3.800K) / Natural white (4.000-5.000K) |
| Dimensions: |
Diameter-90mm * Length 258mm |
| Weight: |
0,65 Kg |
| Socket Type: |
E40 / E27 |
|
| |
| LED Bulb: SDBi-003 (Indoor LED Bulb) |
|
Technical Parameters |
| Luminous Flux (Tj=70°C, Ta=25°C) |
6.000 Lm |
| Light Source: |
60 W |
| Input Voltage (VM): |
85-265VAC 12-24VDC |
| Replacing: |
150 W - 250 W CFL |
| IP Rating: |
IP40 |
| Beam radius / Light dispersion: |
360° |
| Color Temperature (k): |
Cream-coloured (2.700~3.800K) / Natural white (4.000-5.000K) |
| Dimensions: |
Diameter-90mm * Length 328mm |
| Weight: |
0,72 Kg |
| Socket Type: |
E40 / E27 |
|
| |
| LED Bulb: SDBi-004 (Indoor LED Bulb) |
|
Technical Parameters |
| Luminous Flux (Tj=70°C, Ta=25°C) |
1.600 Lm |
| Light Source: |
15 W |
| Input Voltage (VM): |
85-265VAC |
| Replacing: |
150 W |
| IP Rating: |
IP60 |
| Beam radius / Light dispersion: |
360° |
| Color Temperature (k): |
Cream-coloured (2.700~3.800K) / Natural white (4.000-5.000K) |
| Dimensions: |
Diameter-73mm * Length 150mm |
| Weight: |
0,25 Kg |
| Socket Type: |
EE40 / E27 / E26 / B22 |
|
| |
| LED Bulb: SDBi-005 (Indoor LED Bulb) |
|
Technical Parameters |
| Luminous Flux (Tj=70°C, Ta=25°C) |
2.000 Lm |
| Light Source: |
30 W |
| Input Voltage (VM): |
85-265VAC 12-24VDC |
| Replacing: |
80 W CFL |
| IP Rating: |
IP60 |
| Beam radius / Light dispersion: |
360° |
| Color Temperature (k): |
Cream-coloured (2.700~3.800K) / Natural white (4.000-5.000K) |
| Dimensions: |
Diameter-90mm * Length 218mm |
| Weight: |
0,43 Kg |
| Socket Type: |
E40 / E27 |
|
| |
