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"I’m saving for myself!" Action
On the 20th of September Mosenergosbyt (Moscow Energy Sale Enterprise) in partnership with "Kosmos" brand have conducted an action named "I’m saving for myself!", in support of city energy-saving program. One of the stages of the action was exchange of old incandescent lamps for energy-saving lamps offered by "Kosmos" brand.
Partner brands in energy-saving illumination
Lamp type: incandescent lamp.
Advantages:
- the most widely used light source in everyday life;
- simple in use;
- reasonable price.
Disadvantages:
- inefficiency of electric energy use: 5% - light, 95% - heat;
- short service life;
- evaporating tungsten deposits on internal surface of a bulb as dark taint.
Application field:
- are generally used in everyday life where permanent illumination is not required, but convenience of use is important.
Lamp type: halogen lamp.
Advantages:
- accuracy of color rendition;
- stable luminous flux within all service life;
- long durability;
- possibility of light adjustment;
- compact size.
Disadvantages:
- inefficiency of electric energy use;
- high temperature of a bulb;
- ultra-violet rays cause negative influencу on human health (for lamps without protection);
- sensibility to voltage differentials.
Application field:
- places where color rendition accuracy is required: museums, exhibitions, shop-windows;
- local lighting in dwelling rooms, bars, restaurants etc.
Lamp type: compact fluorescent lamp.
Advantages:
- more than 5 times reduction of electric energy expenses (in comparison with incandescent lamps);
- 8 times longer service life than for common lamps;
- high luminous efficiency (brightness);
- compact size;
- capability of operation at low temperatures;
- capability of light "warmth" choice.
Disadvantages:
- relative expensiveness of the lamps in comparison with low-technological lamps;
- color rendition is worse in comparison with halogen lamps;
- luminous flux falls by the end of service life.
Application field:
- possibility of use practically everywhere in a field of incandescent lamps application;
- in places where economical illumination or power limitation are necessary.
Lamp type: metal halide lamp.
Advantages:
- high luminous efficiency;
- excellent color rendition;
- high energy efficiency;
- bright white light;
- insensibility to voltage jumps.
Disadvantages:
- the lamps are turned on not at once and reach their maximum brightness within 5-10 minutes;
- the lamps have operating limitations (can be turned on again only in some time after previous turning off).
Application field:
- are applied in rooms with high requirements to light brightness; trading areas and concert halls, exhibition galleries etc.;
- for exterior lighting.
Lamp type: LED lamp.
Advantages:
- tiny size;
- compactness;
- absence of breakable, wearing and burning-out parts;
- does not heat up;
- high efficiency factor;
- waterproof;
- wide operating temperature range (at -30...+70 °С);
- long durability (90 thousand hours of continuous work).
Disadvantages:
- high primary expenses for buying a LED element.
Application field:
- possibility of use practically everywhere in a field of incandescent lamps application;
- in places where economical illumination or power limitation are necessary.
