Filament bulbs are low in power, Low in power consumption, and very cheap. It has many forms such as orientation, scattering and diffusing. It has a good lighting effect. Large versatility, color products o kinds.
Filament bulbs have a short life. Compared with other CFL, fluorescent bulbs use a quarter as much energy as filament bulb at the same brightness. with the development of all kinds of energy-saving lamps, Filament lamps use even more power.
The development trend of filament bulb is mainly to develop energy saving bulb. Different filament bulb , its structure and components are similar. Filament bulb is the most widely used electric light source with the highest output, although the light efficiency is low.