Surface Mounted LED Downlights
Sometimes recessed installation is not an option, for example when you have a concrete ceiling instead of a suspended (system) ceiling. In that case you can opt for surface mounted downlights. Because you mount these fixtures on to the ceiling, you do not have to take the installation height into account. In addition, a surface-mounted luminaire gives the room a beautiful appearance. Well-known are the Coreline downlights from Philips.
The colour code is a combination of colour rendering (CRI) and light colour (Kelvin). The first number indicates the colour rendering (1 = very poor colour rendering, 9 = maximum colour fastness). The second and third number contains the light colour. Example: the colour code 830 consists of good colour rendering (8) and warm white light (3000K).
The IP value indicates the degree of protection against the ingress of moisture and dust. The 1st digit (0 = not protected until 6 = completely dustproof) indicates the protection against dust. The 2nd digit (0 = not protected until 8 = protected against immersion) indicates the protection against water. Products with an IP44 rating are splashproof and products with an IP65 rating or higher are (completely) dustproof and waterproof.
Every bulb or fixture has an energy efficiency class A to G. Energy label A is the most efficient and G the least. LED lighting is the most sustainable lighting technique. Even if a LED bulb is rated E or lower, they still save 70% of energy compared to conventional lighting with the same energy label. Why is it the same label then? To motivate LED brands to get even more durable.
Sometimes recessed installation is not an option, for example when you have a concrete ceiling instead of a suspended (system) ceiling. In that case you can opt for surface mounted downlights. Because you mount these fixtures on to the ceiling, you do not have to take the installation height into account. In addition, a surface-mounted luminaire gives the room a beautiful appearance. Well-known are the Coreline downlights from Philips.