Yes, if the bulb is incandescent, and you change from a higher wattage bulb to a 25 watt bulb the future growth will be smaller.
yes
sure, it emits light as well as heat. the light from a regular light bulb is not sufficient for photosynthesis but may have an effect on photoperiod which can be a good or a bad things, depends on what you want to grow
A plant growth inducing bulb or lamp operates on the red end of the light spectrum where plants favour that wavelength. It is closer to natural daylight than bulbs that operate in the blue end of the spectrum.
The invention of the light bulb affected how energy was used.
A brighter future!
A pencil has nothing to do with the brightness of a light bulb.
The main effect is the production of light.
by the radiation in the filament it throw out heat . this way the bulb demonstrates the heating effect. :D
The light spectrum from an incandescent (a bulb) is closer to the spectrum of the sun than what comes from a fluorescent.
It will have the same effect as a flourescent light bulb. Its basically the same light. On a white flourescent light bulb, the inside has been frosted white to give off a white light. Without this coating, its the same as a black light. The uv rays are the same.
yes
Rhizomes