Incandescent lamps

Types of lighting lamps Principle of action: metal arc (mainly of tungsten) passes electricity through itself, heats up and releases heat and light energy. Service life: 1000 hours. Color temperature: 2800–3200 K (yellow light). Light return: 8–20 lm / W *. * Shows how much light the lamp generates for each watt of energy consumed. Advantages:

Varied in shape, material, size, power and rated operating voltage.

Disadvantages:

They get very hot, which is why not all lamps can be used in such lamps;

consume a lot of energy, and up to 90% of a kilowatt is converted not to light, but to heat

burn out at power surges.

Will be the perfect mirror lighting, becausepractically does not distort the natural colors. However, it is not necessary to illuminate large areas with incandescent lamps - the room can noticeably heat up from the heat emitted. Lamps can be transparent and opaque. Transparent can only be used in enclosed luminaires, since direct light entering the eyes is extremely harmful.

Fluorescent lamps (tubular)

Operating principle: The flask with electrodes contains mercury vapor and inert gas. A special substance is applied to the inside of the tube - a phosphor that converts the ultraviolet radiation of a 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 return: 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.).

Disadvantages:

Pretty high price;

contain mercury.

Suitable for decorative decoration of the room: You can build a "fence" of long tubular lamps of different colors or color a certain zone with one color. Forgive, 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 in Moscow stores.

Comments

comments