Sunlight, in the broad sense, is the total frequency spectrum of electromagnetic radiation given off by the Sun. On Earth, sunlight is filtered through the Earth's atmosphere, and solar radiation is obvious as daylight when the Sun is above the horizon.
When the direct solar radiation is not blocked by clouds, it is experienced as sunshine, a combination of bright light and radiant heat. When it is blocked by the clouds or reflects off of other objects, it is experienced as diffused light.
The World Meteorological Organization uses the term "sunshine duration" to mean the cumulative time during which an area receives direct irradiance from the Sun of at least 120 watts per square meter.[1]
Sunlight may be recorded using a sunshine recorder, pyranometer or pyrheliometer. Sunlight takes about 8.3 minutes to reach the Earth.
Direct sunlight has a luminous efficacy of about 93 lumens per watt of radiant flux, which includes infrared, visible, and ultraviolet light. Bright sunlight provides illuminance of approximately 100,000 lux or lumens per square meter at the Earth's surface.
Sunlight is a key factor in photosynthesis, a process vital for life on Earth.
so there you go if you got a 1000 watt producing 110,000 lumens per Sq meter your giving same as sunlight) as per lumens
Dude, the SUN shines on HALF of the PLANET! A BULB cannot do the same as the SUN. You don't have to adjust for the sun...You can't escape sunlight even when in "shade". The SUN is free! Outside...WIND/AIR is FREE! FFS, give it a break.
why would you pay to use the sythetic copy if you have the natural original free of charge. the way your doing it is the best way in hawaii. i use fluro tubes and cfls for side lighting.
