Luminous colour :
the colour of the lamp e.g. red, green, yellow, white or warm-white is to be indicated here. The shade of white indicated by us will be assigned according to the following table.

indicated luminous colourcolour temperature
warm-whitebelow 3300 K
whitefrom 3300 K to 5300 K
cold-whiteabove 5300
Power consumption:
Specifies the total power consumption of the article.
If an article is offered as a set comprising a transformer, cabling and several luminaires, for instance, then the total power consumption of all components is given here.
Life expectancy :
In the case of lamps, the average life expectancy is given. This is the average life of individual lamps running under standardised conditions. In the case of LED lamps, the life is deemed expired when the light flux [lm] drops to 50% of its initial value. The life of all other lamps is deemed expired when the lamp is dead.
Beam angle:
The beam angle indicates the extent to which the light is bundled or scattered. The wider the beam angle, the more the light is scattered. The smaller the beam angle, the more the light is bundled.
Equals filamant bulb:
The brightness of this article equals the brightness of a filament bulb with the power given here.
Lumen:
The lamp lumen defines the total output of a lamp, regardless of the beam angle or light color. As a photometric unit, only wavelengths are considered for the measurement of the lumen value, which correspond to the perception of the human eye. The higher the lumen value of a filament, the brighter the light.
IP:
The IP value (international protection type) consists of two numbers; the first describes protection against foreign objects (or contact protection) and the second describes water protection.

Significance of the first and second digit after IP

Protection  Description
IP0XNo contact protection, no foreign object protection
IP1XProtection against foreign objects larger than 50 mm
IP2XProtection against foreign objects larger than 12 mm
IP3XProtection against foreign objects larger than 2.5 mm
IP4XProtection against foreign objects larger than 1 mm
IP5XProtection against harmful dust deposits in the interior
IP6XProtection against the ingress of dust


IPX0No water protection
IPX1Protection against vertically dripping water
IPX2Protection against diagonally dripping water (15 from the vertical)
IPX3Protection against sprayed water
IPX4Protection against squirted water
IPX5Protection against water jets, e.g. water coming from a nozzle
IPX6Protection from flooding
IPX7Protection during immersion in water
IPX8Protection during submersion in water
PRI:
PRI (primary) describes the required input voltage of a transformer. This must match the voltage supplied to the transformer. In addition, differentiations are made between DC (direct current; DC; symbol: equal sign) and alternating current (alternating current; AC; symbol: sinusoid). A transformer with a primary voltage of 230V AC also requires, for example, 230 volts of alternating current.
SEC:
SEC (secondary) describes the output voltage of a transformer. This must match the operating voltage of the consumers connected to the transformer. In addition, differentiations are made between DC (direct current; DC; symbol: equal sign) and alternating current (alternating current; AC; symbol: sinusoid). A transformer with a secondary voltage of 12V DC can also, for example, only supply consumers with a voltage of 12V direct current.
Max. power:
The maximum power describes the maximum power in watts provided by this transformer. The power consumption of all consumers should always be slightly lower than the performance of the transformer. Due to tolerances in electrical components, in individual cases, the power consumption of a consumer (e.g. a lamp) can be more than the given average power consumption. For this reason, the max. total power consumption of the transformer should always be dimensioned slightly higher than the sum of the given power consumption of all consumers would be.
Example: You would like to operate 5 LED lamps with a power consumption of 1 watt each via a transformer (5 consumers x 1 watt = 5 watts). In this case, you should select a transformer with a total power consumption of at least 6 watts.
Dimensions:
The dimensions of this product are given in mm (length x width x height).
Class of energy efficiency :
The class of energy efficiency is based on the relation between the luminous flux in Lumen (lm) and the power consumption in Watt (W).
IN / OUT :
This attribute indicates for which end use the luminaire is qualified. "IN" means appropriate for interior use. "OUT" means appropriate for use  outdoor.
Colour rendering index :
The colour rendering index indicates the relation between colour stimulus and colour impression, which means the reflection of colours by objects when illuminating them by this light source in comparison to a reference light source.