It is the complete lighting unit, consisting of a lamp or lamps together with the parts designed to distribute the light, position and protect the lamps, and connect the lamps to the power supply.
Unit of luminous flux; the flux emitted within a unit solid angle by a point source with a uniform luminous intensity of one candela.
The ratio of lumen output of the lamp and the rated power consumption expressed in lumens per watt. It indicates the efficiency of the luminaire.
It is the level of illuminance required for a particular task to be carried out by an operator comfortably.
The height of the fixture or lamp above the working plane
It is the ratio of power in watts to the area of the work plane.
It is the key metric used for benchmarking energy usage in commercial building.
The luminaires are rated on a scale of 5 for the energy efficiency by BEE.
Star Rating | Rated Luminous Efficacy (lm/W) |
---|---|
1 | ≥68 & <79 |
2 | ≥79 & <90 |
3 | ≥90 & <105 |
4 | ≥105 & <120 |
5 | ≥120 |
Star Rating in LED lights
Measuring Tape