Editing 2009: Hertzsprung-Russell Diagram
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Latest revision | Your text | ||
Line 159: | Line 159: | ||
|4800 K | |4800 K | ||
|75 W | |75 W | ||
− | |The temperature value here refers to | + | |The temperature value here refers to colour temperature, which for an incandescent bulb is the same as the filament temperature. However tungsten filament lights, commonly referred to as "bulbs", have a colour temperature of between 2400 and 3600 K, and tungsten melts at 3695 K. |
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|LED Bulb | |LED Bulb | ||
|5800 K | |5800 K | ||
|8 W | |8 W | ||
− | |The temperature value here refers to | + | |The temperature value here refers to colour temperature, not physical temperature. Color temperature is a better match to effective temperature than physical temperature. As typical semiconductors might be rated for a maximum of 150 °C or about 420 K, the physical temperature of an LED Bulb is considerably lower than its colour temperature. |
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|Astronomer | |Astronomer |