I want to replace my 75 watt bulb in the desk lamp with a candle stick. How much light does each candle give off? So how many candles would I need to replace the 75 watt light bulb?
A typical luminous efficacy of a 75 watt incandescent light bulb is 15 lumens/watts. Now, a typical candle produces about 0.15 lumens/watt. So, you need about 100 candles to produce a similar luminosity than a 75 Watts lamp, although the spectral characteristics will be very very different as the candle burns at a much lower temperature than the light bulb.
In other words, forget about it. You will just add an unnecessary fire hazard.
A typical luminous efficacy of a 75 watt incandescent light bulb is 15 lumens/watts. Now, a typical candle produces about 0.15 lumens/watt. So, you need about 100 candles to produce a similar luminosity than a 75 Watts lamp, although the spectral characteristics will be very very different as the candle burns at a much lower temperature than the light bulb.
In other words, forget about it. You will just add an unnecessary fire hazard.
according to mfg an incandescent bulb inside frosted 60w output is 840 lumens, 75w output is 1150 lumens
1 foot-candle is defined as a candle intensity 1 ft away generated 10.764 lumens per m^2
therefore no.of candles equivalent to 75 watt bulb is
x = 1150/10.764 = 106.84
depends greatly on the type of candle but 10 of those little ones than come in foil tins are very bright