19.3 * 10 ^ 14 footcandles.
444
The conversion from lumens to watts isn't direct, as it depends on the efficiency of the light source. For example, LED lights typically produce about 80-100 lumens per watt, while incandescent bulbs produce around 10-17 lumens per watt. Therefore, for LED lighting, 10,000 lumens would require approximately 100-125 watts, while for incandescent bulbs, it could require 600-1,000 watts.
700 lumens
0.5 footcandle = 5.381 lux
100 lumens=1257 candlepower from what I have found
Approximately 15 lumens per watt for halogen, so 300 lumens.
A 1,000 watt is 15,000 lumens. A 100 watt bulb is 1,500 lumens.
Wikpedia says that halogen lamps produce about 19-20 lumens/watt. If you have a 500W lamp then you get 9500-10000 lumens.
21
One lumen makes up 1 ANSI lumen as they both measure the same output of light. ANSI lumens are used exclusively for measuring the output of projectors.
A 1141 bulb typically produces around 185 lumens.
Absolutely. Photographic light meters are designed to measure light for photographic exposure (in a film-speed/shutter-speed/aperture combination), but many hand-held photo light meters can measure light in footcandles, which is a common scale. If you look on places like eBay, you can find inexpensive, digital, brand new meters which read out in Lux or Lumens. Some may read in footcandles as well. It's not difficult to convert from one measure to another (there should be internet calculators which would do it easily).