about Php 75 or $1.90
You are charged by Kilowatt Hours. An average cost is about 12 cents. To make the math easy, assume a standard 100 watt incandescent bulb. If you had ten of them turned on for an hour it would cost 12 cents.
No, compact fluorescent bulbs run much cooler that an incandescent bulb. A CF bulb can be unscrewed when the lamp is on whereas an incandescent will give you a bad burn if this is tried.
A couple of ounces.
Incandescent bulbs produce the most heat for a given amount of light; fluorescent lights produce much less heat, and LED produces the least.
fluorescents are about 5x as efficientso a 12W will give about as much light
You are charged by Kilowatt Hours. An average cost is about 12 cents. To make the math easy, assume a standard 100 watt incandescent bulb. If you had ten of them turned on for an hour it would cost 12 cents.
Yes, absolutely. As long as the LED bulb and incandescent bulb have the same base they will both fit the socket. The LED bulb will also run much cooler than the original incandescent bulb.
No, compact fluorescent bulbs run much cooler that an incandescent bulb. A CF bulb can be unscrewed when the lamp is on whereas an incandescent will give you a bad burn if this is tried.
A couple of ounces.
i do not want an incandescent bulb.
Incandescent bulbs produce the most heat for a given amount of light; fluorescent lights produce much less heat, and LED produces the least.
An incandescent bulb wastes electricity.
The first commercially available light bulb cost $1 in 1881, which was three years after Thomas Edison developed the first practical incandescent light bulb. The Seattle Times reveals the $1 price in 1881 translates to $23 in 2013. By 1910, the cost of a light bulb dropped to 17 cents.
Only 1 :p :P :
The average lifetime of an incandescent bulb is around 2000 hours.
fluorescents are about 5x as efficientso a 12W will give about as much light
That does not depend directly on the brightness of the bulb, it depends on the current drawn by the bulb (which depends on the efficiency of the bulb). For example an incandescent bulb will draw much more current than a much brighter CFL bulb or LED bulb. Therefor switching to an brighter LED bulb can make the battery last much longer while switching to a brighter incandescent bulb will make the battery run down quicker.