The ceiling lamp with fluorescent bulbs 4h18 - description

Currently, the luminaires with fluorescent lamps is widespread. They are used not only for domestic use but also for production. As sources office lighting most used ceiling lamps with fluorescent lamps 4h18. Let us further consider what these devices are and how they work.

Principle of operation

Based on the work of luminaires that use fluorescent lamps, is the principle of action of the latter. It is that there is treatment with ultraviolet rays of the phosphor layer which covered the inner surface of the bulb, resulting in the glow.

In turn, the current passing through the gas filling of the lamp serves as the transmission medium electrode pulses to generate the arc creates ultraviolet rays.

Depending on what the composition of the phosphor layer deposited on the surface, and temperature produced by the lamp luminous flux will be different colors. It imposes on the use of fixtures some limitations:

• Lamp, giving a bluish light (temperature of about three thousand Kelvin) – day – use in areas of small square table and the light sources, most often it is ceiling lamps with fluorescent lamps 4h18;
• Bulb, emitting warm white light tones (six thousand degrees Kelvin, a yellow spectrum) – used in living rooms and small offices;
• Lamp intermediate characteristics of the previous two groups.

The Advantages of fluorescent lamps

The Main advantages of the lamps, which are used in the fluorescent lamp 4h18 are:

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• Protective design ensures safe use;
• Electronic ballast apparatus (electronic ballast) allows the lamp silently;
• Compact size suitable for any design decisions;
• Compared with other design lamps have a service life, more approximately twelve times;
• Light output of these lamps, including ceiling lamp 4h18 exceeds the corresponding parameter of incandescent bulbs is almost five times;
• There is a choice of the right shade of luminous flux;
• Saving electricity is almost three times compared to conventional lamps.

Cons of fluorescent lamps

As with any device, such light sources have not only advantages, but also disadvantages.

The Disadvantages of this type of lights can be called:

• Restricted – may not be used for lighting in supermarkets (to avoid distorting the appearance of the products) and workshops with equipment that has rotating parts (may occur stroboscopic effect);
• Sensitivity to frequent switching and off – the phase-frequency fluctuations in the voltage output of lamp failure;
• Ceiling lamp with fluorescent bulbs 4h18, and other similar, cannot be placed in the niches of suspended ceilings – at a temperature over sixty degrees Celsius is their deformation;
• Harmful effects on humans – the bulb contains mercury in the amount of one gram, it also causes difficulties when disposing of the lamps.

Classification of lamps and lamp

Luminaires with fluorescent lamps different mounting method.

The Classification of them is as follows:

• Suspension – are mounted on the high ceilings (more than two and a half meters) on the brackets;
• Embedded & ndash; the installation of such systems is performed simultaneously with the ceiling in the frame with the clips;
• Wall – fixed to the cables or wall, the design can use reflectors to illuminate a specific area;
• Table – are used as local lighting;
• Invoices – are installed on plasterboard or inlaid ceiling;
• Bitmap – used for public lighting, example – ceiling fixtures with fluorescent lamps 4h18 "Armstrong".

Fluorescent lamps are divided into three types:

• Electromagnetic – twinkle, typical hum and unevenly distribute the flow of light;
• Lamp with electronic ballast – provide a higher quality light, stable, no light vibrations and noise are more a work resource than the previous one;
• Compact & ndash; have a built-in electric ballast that is compatible with the cartridges of conventional lamps provide ambient daylight.

Chetyrehmetrovy lamps

Widespread false ceiling lights with fluorescent lamps 4h18, which are set mainly in wet areas as they have the appropriate protection. They are also used for illumination of corridor and office areas. Lamps for such lamps are available with power ratings of eighteen and thirty-six watts, all kinds of colors and designs.

As a rule, in such devices installed electronic ballasts. They are mounted by embedding or hanging and provide a total of seventy-two watt of power.

Due to the fact that the design of such lights are installed mirrored lattice, thesethe device evenly distributes the light beam in any corner of the room.