how much units cosumed by 15 watts cfl ina day
A power saving light is also known as a Compact Fluorescent Lamp (CFL).A typical CFL is rated at about nine (9) to thirteen (13) Watts, and the energy consumed by each is 0.009 kW and 0.013 kW respectively.
No, it is not recommended to use a 100 watt CFL in a fixture that specifies a maximum of 25 incandescent watts. CFL bulbs have different wattage equivalencies compared to incandescent bulbs, so you should use a CFL bulb that is equivalent to or lower than the specified incandescent wattage for the fixture. Using a higher wattage CFL bulb can cause overheating and potentially pose a fire hazard.
Around 50-75% of energy can be saved if one uses CFL. As a matter of fact, in India, 20% of total energy consumed is for lighting purpose. i.e If the energy consumed per month is 500 units, you can roughly tell, 100 units has been consukmed for lighting purpose. Now if CFL and TFL is used, the 100 units consumed otherwise can be reduced to 50 units or even less. therefore, the effective electricity bill would be of 450 units instead of 500 units.
For lighting using CFL bulbs you can use 10 square feet per watt. The volt-amps is the volts times the amps, or the watts divided by the power factor. Most CFL bulbs are marked with the voltage and the current.
the rule is.... run 100 watts 24/7 for 100.00/year. Your cfl will cost apx.75/year. However, while your cfl only uses 75 watts it is equivalent to apx 350 watts and produces a broad variety of colors in the spectrum making it great for growing!
The number of watts needed to produce 820 lumens depends on the type of light source. For traditional incandescent bulbs, it would be around 60-70 watts. However, for LED or CFL bulbs, it would be much lower, around 10-15 watts.
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.
So to replace a traditional 60-watt bulb, buy a 15-watt CFL: 60-watt incandescent / 4 = 15 watts. Note: Some brands of 60-watt equivalent CFLs still do not seem to give off as much light as a 60watt incandescent bulb.
Halogens are about 30% more efficient so 300 watts incandescent is equivalent to about 210 watts halogen. It's also equivalent in brightness to about 60 watts CFL.
i think the rule is 100watt per plant.
Depends on the light. Typically about 1/8th of the wattage used by an equivalent standard bulb.
It depends on the type of bulb used. The term "60 watt" is the power consumed by an incandescent bulb producing about 800 lumens of light. This would use about 1.44 Kw-hr of electricity if operated continuously for 24 hours.A compact fluorescent lamp (CFL) would require only 13 to 15 watts, about 25% as much electricity.A light-emitting diode lamp (LED) would require only 6 to 8 watts, about 13% as much as the 60-watt.