Incandescent lamps

Types of lighting lampsTypes of lighting lampsOperating principle:a metal arc (mostly tungsten) passes electricity through itself, heats up and releases heat and light energy. Service life: 1000 hours. Color temperature: 2800-3200 K (yellow light). Luminous efficiency: 8-20 lm/W*. * Shows how much light the lamp produces for each watt of energy expended. Advantages:

  • They vary in shape, material, size, power and operating voltage rating.
  • Flaws:

  • They get very hot, which is why not all lamps can be used in such lamps;
  • consume a lot of energy, with up to 90% of kilowatts converted not into light, but into heat;
  • burn out during power surges.
  • They will become the ideal backlight for mirrors, aspractically do not distort natural colors. However, large areas should not be illuminated with incandescent lamps - the room can noticeably heat up from the heat emitted. Lamp bulbs can be transparent and matte. Transparent ones can only be used in closed lamps, since direct light into the eyes is extremely harmful.

    Fluorescent lamps (tubular)

    Operating principle:the flask with electrodes contains mercury vapor and an inert gas. A special substance, phosphor, is applied to the inside of the tube, converting the ultraviolet radiation of the lamp into light visible to the human eye. Service life: 10,000-15,000 hours. Color temperature: 4000-6000 K (light yellow, white light). Light output: 40-110 lm/W. Advantages:

  • Do not heat up above 40 degrees, so you can unscrew it, even when it is on;
  • can emit different colors (red, yellow, green, white, etc.).
  • Flaws:

  • Pretty high price;
  • contain mercury.
  • Suitable for decorative design of premises:You can build a "fence" from long tubular lamps of different colors or color a certain area with one color. Goodbye, money! Incandescent lamps from 9 rubles * Halogen (halogen) lamps from 45 rubles Fluorescent lamps (tubular) from 40 rubles Compact fluorescent lamps from 65 rubles * At average prices of Moscow stores.

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