24V 20W/m 5CCT Free Cut LED Strip Kit 168 LED/m 5m | With Controller & RF 2.4GHz Remote Control

Rated Power

What it consumes, not how much light it gives. To compare light, look at the lumens.

Nominal Voltage

The voltage it connects to. 220-240V goes straight to the mains; 12V or 24V needs a separate driver.

Colour

Light colour: 3,000K warm (living room, bedroom), 4,000K neutral (kitchen, office), 6,000K cool (warehouses, outdoors).

CRI - Chromatic Rendiment Index

How faithfully colours are shown, from 0 to 100. CRI 80 is good for indoors; 90 or more for shops, food and clinics.

Luminosity-Lm

Amount of light it emits. It is the figure for comparing brightness: a classic 60W bulb gave about 800 lm.

Number & Type of LEDs

How many chips it has and of what type. SMD: even light; COB: concentrated light, typical of spotlights.

Beam Angle (º)

Width of the light beam. Narrow (15-36º) to highlight an object; wide (90-120º) to light an area.

Dimmable

Whether the brightness can be lowered and with which system (TRIAC, 1-10V, DALI). Each system needs its own dimmer.

Luminous diodo LED (Lm/W)

Efficacy of the LED chip alone, in the lab. It shows the chip quality; the real light output is the product’s luminous efficacy.

Luminous Efficiency (Lm/W)

Light it gives per watt consumed. From 100 lm/W it is efficient; over 150 is high-end.

Certifications

Marks that certify safety and quality: CE mandatory in Europe, RoHS free of hazardous substances, TÜV tested by an independent lab.

IP

Protection against dust and water. IP20 dry indoor areas; IP44 bathrooms and kitchens; IP65 outdoors in the open; IP68 submersible.

Temperature Range (ºC)

Ambient temperature in which it works properly. Outside that range it degrades and the warranty is lost.

Construction Material

Body material. Aluminium dissipates heat better and extends the LED’s life; plastic is lighter and cheaper.