Modular Rektor Semi-Recessed LED 78X78 Adjustable 1-10V Dim Ceiling light Black/Aluminium 40° Warm white

The beam angle determines how wide or narrow a lamp scatters light on a surface, and is expressed in degrees (°).

This value indicates the colour temperature of the light produced, expressed in Kelvin (K). The lower the Kelvin value, the warmer the light feels. In turn, a bulb with a higher Kelvin value gives a colder impression. For example, the warm white glow of an incandescent lamp has a Kelvin value of 2700K.

The specific type or hue of light emitted by a light source, such as a bulb or LED. Different light colour types can have varying effects on the appearance of objects and people in a given environment. For example, a warmer light colour type may create a cosy and inviting atmosphere, while a cooler light colour type may appear more clinical or energising. When selecting light bulbs or fixtures, be sure to consider the desired mood or ambiance you wish to create, as well as any functional requirements, such as task lighting or colour accuracy.

This indicates whether the light source is included or not. If the lamp(s) are not included, you will find the matching lamp in accessories.

The appliance class indicates the extent to which the appliance protects against electric shock. The degree of insulation is shown according to ascending protection values "I", "II" and "III". The higher the device class, the higher the degree of protection.

The IP rating is a standardised rating system that indicates the degree of protection the device provides against the ingress of solid objects (such as dust) and liquids (such as water). For example, an IP65-rated device has good protection against solids (IP6X) and is resistant to spray water (IPX5). The higher the IP rating, the better protected the device is. "Read more.

This indicates whether the brightness of this product can be adjusted using a dimmer. This does not mean that a dimmer is included.

This refers to the specific type of dimming technology used in the product. Common types include PWM (Pulse Width Modulation), TRIAC (Triode for Alternating Current), and DALI (Digital Addressable Lighting Interface). Each type of dimming technology has its unique features and benefits, and it's essential to choose the right type for your lighting system to ensure optimal performance.

This tells you whether the manufacturer allows the product to be installed outdoors. Lighting for outdoor use has better resistance to elements such as rain, heat, UV or even corrosion. These fixtures always have a higher IP rating to prevent water damage.