There are 1000 milliwatts per lumen.
9.231 X 10^-4 milliwatts
lumen
100,000 hours
Lumen
The question does not have enough information in it to properly answer it. (How many "what" per kph.) Please restate the question.
there is 5 lumen per hour in 1 joule
4,710,000 milliwatts
There are 0.000155 kilowatts (kW) in 155 milliwatts (mW).
If you refer to the energy cost, that doesn't make sense. Lumen means how bright something is - the actual cost will depend on how long you keep a bulb on; in other words, you would get dollars per kilo-lumen per hour, for example - not just dollars per kilo-lumen.
There are 1000 milliwatts in a watt. There are 1000 watts in a kilowatt. Therefore, there are 1 million milliwatts in one kilowatt.
You can't without knowing the source of the light as candelas have an allowance for human eye sensitivity built-in, and that varies from light source to light source. For any given light source you can find a lumens per watt figures and work back from that as a lumen is adjusted to human eye sensitivity as well.
1 lumen = 1 candela per steradian.1 candela = 1/683 watts per steradians (assuming 540nm light wavelength).Assuming that the light is collected from a single steradian:1 Lumen = 1 Candela -> = 1/683 Watt -> Watt = 683 Lumens1 Joule = 1 Watt per Second -> Watt = Joule/SecondHence:683 Lumen = 1 Joule/SecondUnder the above assumptions1 Lumen = 1/683 Joule/Second
I don't believe that there is such a thing as an 'ampere per lumen'. An ampere is the SI unit of current, whereas the lumen is the SI photometric unit for luminous flux. There is no direct relationship between the two.
9.231 X 10^-4 milliwatts
0.0572 decawatts are in 572 millwatts
One lux = one lumen per square metre See link for more detail.
around 20