GU10 CCT Lamp

Voltage provided to a luminaire by the power supply.

Cycles (frequency) per second.

The operating temperature of a light fitting indicates the safe temperature range in which it can be installed. Exceeding this range can reduce the lifespan. Adhering to specified temperatures ensures optimal performance and longevity.

Colour Rendering Index, known as CRI or Ra. The appearance of surface colours when illuminated by light from a given (CRI/Ra) source. Good colour rendering implies similarity of appearance to that under an acceptable light source, such as natural daylight

SDCM, or ‘Standard Deviation of Color Matching,’ is a key metric in evaluating color consistency, especially in LED production. The SDCM value for an LED chip, specified as the initial value, is crucial. A lower SDCM indicates superior color consistency, making it essential for applications requiring accurate and consistent color rendering, such as in commercial, professional, retail, and art settings.

A ‘beam angle,’ also known as ‘beam spread,’ quantifies the spread of light emitted from the source. Measured in degrees, it extends from the ‘Peak Intensity’ of the light source to the point where the measured light diminishes to 50% of the maximum peak intensity.

IP rating is a global standard showing how resistant a product is against the intrusion of solids and liquids. The first numeral indicates the degree protection against the ingress of solid of
objects, whereas the second numeral refers to the degree of protection against the ingress of
water. The following symbols are appropriate:

• IP20 – Suitable for indoor spaces such as living rooms, entertaining spaces and bedrooms.
• IP44 – Suitable for bathrooms and kitchens, where water may be lightly sprayed.
• IP54 – Suitable for outdoor and bathroom use where water may be lightly sprayed.
• IP65 – Recommended for bathrooms, kitchens and gardens, where there may be splashing of water.