Bulb (Żarówka) - electric light source in which the body glowing fiber is made of hot-melt material is difficult (originally graphite, tungsten present). Tungsten wire placed in a glass bulb filled with a mixture of noble gases (eg argon with an admixture of 10 per cent nitrogen). Fiber reaches a temperature of about 2500-3000 K due to electrical current flow. The invention was made in the mid-nineteenth century, derived from the light bulb is the light similar to sunlight and offers good color rendering index viewed in this light objects, lit all the time equally, without causing stroboscopic effects. The spectrum of light emitted by the lamp is constant, a lower color temperature (more yellow) than the sun. Colour temperature of light emitted by the lamp is about 2700 K. The downside is their small bulbs luminous efficiency, typically amounting to about 12 (from 8 to 16) lumens / watt (some have the efficiency to less than 6 lumens / watt) and low stability [9 ] [10]. The bulb uses about 5% of the energy in the visible light, and the rest of the energy is lost in heat. September 1, 2009 in the European Union began a gradual process (2012) withdrawal from the use of light bulbs and replace them with fluorescent lights and LED bulbs. Information about the parameters bulb contains energy label affixed to the package.
LAMPKA-LAMP The lamp made in London in 1964.First a lamp inventor Johm Smitch. He is a first invent a bulb. The next invend cable. After he is join witch self to lonigts. to a lamp shine have to press emphasis. the lamp is facility life each with our LICZE NA NAJ.:>
