No, it's in candelas.
I think its 4000, fred.
Wikpedia says that halogen lamps produce about 19-20 lumens/watt. If you have a 500W lamp then you get 9500-10000 lumens.
The efficiency of a light bulb is typically measured by its luminous efficacy, which is the amount of visible light produced per unit of power consumed. This is usually expressed in lumens per watt. The higher the luminous efficacy, the more efficient the light bulb is at converting electrical energy into visible light.
The lumen output of the bulb should be determined by measuring the Lumens exiting the fixture that it is installed in. The reflector, lens and housing will all affect the the amount of "light" that exits the fixture to reach the space you are intending to illuminate. Bulbs will vary and Lumens will vary based upon the voltage. A typical 12V 20W Halogen bulb will yield about 180-220 lumens depending on the lens (clear vs. frosted) and the reflector type. Lumens will drop as voltage goes below 12Volts as the design voltage is specified in order to "excite" the halogen gas as it reacts with a tungsten coated filament. If the voltage isn't high enough the filament won't reach it's design temperature and the light won't burn as bright as it was designed to. a lone bulb will yield up to 280-300 Lumens with now housing, lens or fixture but it is also very dangerous due to the heat hazard.
cycle is not exactly the correct term, but it is continuous.
It is generally safe to use a 100 watt energy-saving bulb that only consumes 23 watts in a fixture rated for 60 watt bulbs. The lower energy consumption of the bulb means it will not surpass the fixture's wattage limit, reducing the risk of overheating. However, to be completely sure, you can consult the manufacturer or an electrician for confirmation.
The watts determine how much energy is taken and how much heat is produced. You need to look at the lumens to see how much light is produced. CFLs produce 4-5 times more lumens than incandescent bulbs, or 3-4 times more than halogens, for the same power in watts.
theyre in their menstrual cycle
everyboday says no. But Answer is Yes.
Light it says light!!
this is sexual harrassment
50p