QUATTRO K is a fixture designed for mounting in coffered ceilings, made of steel, powder coated into white. It is equipped with an integrated LED light source and a modern power supply system designed by MILOO ELECTRONICS. High luminous efficacy reaching up to 135 lm/W. Large selection of models with different lighting power (other available on request), three types of lampshades: diffusive, prismatic or microprism. The fixture can work with the DALI control system. The motion sensor on request.
LED source a light source based on light emitting diodes LED.
Power Supply a supply voltage value in an electrical installation, which is necessary for proper operation of a given light fixture. VAC - abbreviation for voltage (V) and alternating current (AC). 
Light distribution angle a light distribution angle is one of the parameters of a light emitting diode (LEDs have a constant, defined solid light distribution angle). The values are expressed in degrees "°". In order to present light distribution of a given light fixture, its luminous intensity to different directions is measured, on the basis of which distribution curve for the light fixture is created (see photometry tab).
IP protection marking a degree of lighting fixture protection against external factors. The IP designation (designation system for enclosure protection against access of hazardous solid bodies and water) consists of two letters and the maximum of 4 characters from which the first one always denotes the degree of resistance to solid bodies penetration and the second one denotes the resistance to water contact.
IK Protection rating degrees of protection against external mechanical impacts, complaint with standard PL-EN 50102.
DALI standard the name stands for Digital Addressable Light Interface and it denotes a digital and integrated lighting control system. (Check the benefits of DALI technology).
The RoHS Directive an abbreviation for Restriction of Hazardous Substances. It is an EU directive which came into force on 1st July 2006. The main reason for its introduction is the policy that aims at protecting natural environment: reduction of hazardous substances, among others, cadmium, mercury, lead present in electric and electronic waste. 
Declaration of Conformity it is a written statement of a manufacturer, prepared once. It is intended to certify that the manufacturer meets all EU requirements regarding a lighting product. The proof that a company holds a declaration of conformity is placement of a CE marking by the producer.
Maximum ambient temperature it is a maximum ambient temperature, designated by the manufacturer in which a given lighting fixture may seamlessly operate in normal conditions. It is expressed in Celsius degrees. Using a lighting fixture in temperatures higher than the maximum ambient temperature may result in a failure, damage of the fixture or its components.
Color rendering index CRI(Ra) allows to define white light quality. It is used to define how realistically natural colors of objects lit by a given lighting fixture are perceived. The color rendering index (CRI) is expressed on the scale from 0 to 100. The higher the index, the more precise rendering of a lit object’s color by a given lighting fixture.
Color temperature it is an objective measure of color emission by a given light source. It is defined by comparison to a black body in a specific temperature. The parameter is expressed in Kelvins (K). In lighting technology ranges have been defined for the most commonly used shades of light: warm color (2600-3700 K), natural (3700-5000 K) and cold (5000-8300 K).
Hygiene certificate of the National Institute of Hygiene an approval issued by the National Hygiene Institution (PZH). The attestation prevents introduction to the market of products that pose risk to health and life, as well as reduction of health hazards resulting from the use of a given product.
Protection class I there are four basic protection classes conventionally defined for electrical appliances from the fire safety perspective. Protection class I ensures basic protection from direct contact by application of basic insulation. Lighting fixtures have a clamp to connect them with a protective conductor. The connection to a protective conduction serves as additional protection in the case of damage and involves automatic fast disconnection of power supply. 
Sequential Power supply an innovative and patented solution in the field of LED fixtures power supply. The solution allows for elimination of components with limited lifetime, such as electrolytic capacitors (type of the capacitor, in which one of the electrodes is an electrolyte). The solution allows to extend the time of operation of the entire power-supply system up to 100,000 man-hours!
Energy efficiency class provides information on the energy class (energy consumption). Pursuant to the European Union regulations all light sources must have the class assigned to them. The aim of its publication is to enable a customer to compare various lighting product. It is marked by an appropriate label placed on a lighting fixture.
Color of the fitting RAL - Color of the fitting white /RAL 9003
* Other colors according to RAL palette