J
j.
Guest
If somebody doesn't want to use incandescent bulbs in the house because they're too expensive, warm white LEDs seem to be a better option than CFL.
Warm White apparently has a better spectrum (i.e., more red and less blue) than regular white led.
Warm White Spectrum:
White LED Spectrum:
Another way of comparing bulbs is using their color temperature. The color temperature of a light source is computed based on the ratio of blue and red light it emits. The lower the number, the more red there is. Color temperature of different sources (some numbers according to amazon product specifications):
CFL Light Bulb: 6500
White LED: 6000
Sunlight: 5400-6000
Warm White LED: 3000
200-watt incandescent bulb: 2,980
100-watt incandescent bulb: 2,900
75-watt incandescent bulb: 2,820
60-watt incandescent bulb: 2,800
40-watt incandescent bulb: 2,650
Candle Flame: 1,200 to 1,500
More about color temperature.
Warm White apparently has a better spectrum (i.e., more red and less blue) than regular white led.
Warm White Spectrum:
White LED Spectrum:
Another way of comparing bulbs is using their color temperature. The color temperature of a light source is computed based on the ratio of blue and red light it emits. The lower the number, the more red there is. Color temperature of different sources (some numbers according to amazon product specifications):
CFL Light Bulb: 6500
White LED: 6000
Sunlight: 5400-6000
Warm White LED: 3000
200-watt incandescent bulb: 2,980
100-watt incandescent bulb: 2,900
75-watt incandescent bulb: 2,820
60-watt incandescent bulb: 2,800
40-watt incandescent bulb: 2,650
Candle Flame: 1,200 to 1,500
More about color temperature.