LED strips are a highly versatile lighting solution, available in single‑colour, RGB and water‑resistant variants to suit almost any design brief. One key specification that affects installation and performance is voltage. This guide explains the main considerations, compares 5 V, 12 V and 24 V strips, and highlights products from the WeLoveLEDs range.

The main things to consider

Power supply

Always use a current‑limiting device (LED driver or controller) to stop strips being over‑driven. Pair the strip with a power supply of the same voltage—connecting a 12 V strip to a 24 V supply will destroy the LEDs.

Voltage drop

Voltage drop is the loss of voltage along the cable run. Excessive drop causes dimming or flicker. It is influenced by strip length, cable thickness and connector choice. For example, a Classic 120 12 V strip can be powered from one end for up to five metres, or from both ends for up to ten metres. Higher‑voltage strips are less susceptible to voltage drop.

5 V LED strips

Low‑voltage 5 V strips are popular for decorative indoor projects—and for installations in caravans, boats or gardens where extra‑low voltage is safer. They run from a transformer rather than the mains.

Pixel 60 5 V offers 30,000 hours of vivid, individually addressable colour with a 12‑month warranty.

12 V LED strips

Ideal for kitchens, bedrooms and driveways, 12 V strips balance safety with efficiency, using around 20 % less energy than incandescent lamps. Outdoor installations need weather‑rated fixings and protection.

Recommended products include the Water‑Resistant 60 12 V (pure or warm white) and the energy‑saving Eco 60 12 V. For colourful outdoor areas, consider Water‑Resistant 60 RGB.

24 V LED strips

Higher‑voltage 24 V strips suit long runs and decorative or concealed lighting, as they can be powered from one end for up to ten metres without noticeable voltage drop. Use a matching 24 V driver for full brightness.

Popular options are the SG160 RGB 24 V and the slimline SuperSlim 60 24 V, both supplied with a 12‑month warranty.

Frequently asked questions

How far can an LED strip be from its power supply?

Run 5 V or 12 V strips up to five metres from one end; 24 V strips up to ten metres. Longer runs need power injection at both ends or at intervals.

What does LED density mean?

Density is the number of LEDs per metre. Classic 120 has 120 LEDs / m, whereas Water‑Resistant 60 has 60 LEDs / m.

Which colour temperature should I choose?

  • 2700–3300 K – warm white, cosy for bedrooms
  • 4000 K – neutral white, ideal for retail (special order)
  • 6000–6500 K – pure white, daylight effect

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