Page 379 - Catalogue-UK-ED25

SERIES / PARALLEL WIRING

LED lighting products can be wired in either Series or Parallel and both have their advantages.
1 Series
Series wired products that require a separate constant current power supply.

POWER SUPPLY /
LED DRIVER

2 Parallel
Parallel wired products that require a separate constant voltage power supply.

POWER SUPPLY /
LED DRIVER

Collingwood Lighting specification sheets and catalogues clearly show which driver to use with which product and show how many LEDs can be fitted.

BUILDING REGULATIONS

Specifically related to the UK, the following building regulations should be complied with, where appropriate.
Part B - Fire Protection
When a hole is cut into a fire barrier (e.g. a fire rated ceiling), an appropriately fire-resistant luminaire must be used to block the hole from any pathway in the event of a
fire in the room. All Collingwood downlights are fire rated and designed around our patented fire-resistant technology.

Part C - Moisture Protection
When a hole is cut in an insulation barrier (e.g. a ceiling tile or plaster ceiling), air and moisture can travel into the ceiling void. Part C rated downlights can assist in
energy saving by preventing heat loss from a room. The H4 Pro range are the only Part C rated adjustable downlights available in the market.

Part E - Acoustic Protection
In multi-floor buildings, such as hotels and apartment blocks, sound can permeate throughout the building causing annoyance to neighbours and colleagues. With a Part
E rated downlight, testing is carried out to ensure it is resistant to sound being transferred through partitions.
Part P - Electrical Safety
Covers all aspects of proper installation of electrical components. All Collingwood products have been designed to easily allow installation to Part P, but we recommend
that they should be installed by a qualified electrician or a suitably competent person.
Part L - Conservation of Energy
LEDs are an energy efficient technology, however not all LED products are created equal. Part L ensures that only the most efficient products are installed,
so that as little energy as possible is used, and therefore energy bills are lowered.
Since early 2014, the energy efficiency requirement in Part L is greater than 60lm/W. There is also an onus on using control systems to ensure that energy is not further
wasted by lighting being left on when it is not needed.

SDCM (STANDARD DEVIATION COLOUR MATCHING)

SDCM refers to the colour consistency between light sources. SDCM
is a different naming convention for MacAdam Ellipses, both terms are
internationally accepted. A SDCM is a scientific term given to light sources
that the human eye should not be able to distinguish a difference between
in an installation.
Collingwood Lighting commits to ensuring that its illumination products
have a colour consistency.

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