the first one was carbon filament
Its the wire inside of light bulbs.
The early light bulb used a rather powerful electric current, Did not have a very good vacuum inside it and in some did not use a bulb at all! Today's light bulbs use less electricity and have no oxygen inside them. This makes them more efficient and reliable.
fluorescent
Some advantages of using GU10 light bulbs are the fact that you could avoid the disadvantages of using regular light bulbs. GU10 light bulbs don't have poisonous gas inside of the bulb.
because it doesn't let the light glow
Modern light bulb filaments are usually Tungsten not Carbon. However early bulbs used things like silk coated with Carbon. Filament means thin thread. The bulbs are filled with inert gas like Argon to stop the filament from burning up with oxygen. Arc lamps use Carbon rods though.
Incandescent light bulbs tend to get the hottest compared to other types of light bulbs, such as LED or CFL bulbs. This is because incandescent bulbs produce light by heating up a filament inside the bulb. LED and CFL bulbs produce light through a much more energy-efficient process, which generates less heat.
you need to remove the inside panel to get to these bulbs
Light bulbs burn out due to the filament inside them breaking or wearing out over time, which interrupts the flow of electricity and stops the bulb from producing light.
Argon gas is commonly used inside incandescent light bulbs to prevent the filament from oxidizing and burning out. It helps to prolong the life of the bulb by reducing the evaporation of the filament material.
Incandescent light bulbs are often coated on the inside with a white phosphor powder to help improve light output and color rendering. This coating helps diffuse the light and reduce glare, resulting in a softer, more evenly distributed light.
Noble(nonreactive) gases like argon