How to Choose LED Strip Lights for Signs

Start with the light path

For shaped letters, tight curves and detailed sign elements, the tape may need to bend sideways around the design. An S-type or zig-zag strip is made for that kind of path. Our white zig-zag strip and Magic RGB S-type strip are the shaped-run choices in this range.

A straight strip suits a long, linear run or a layout that follows the tape's normal bend direction. Our straight RGB and straight RGBW reels are better starting points for those layouts. A straight reel should not be forced sideways around a sharp letterform.

LED strip lights should fit the build. Sketch the actual path and measure each lit section before deciding on a reel length.

Choose the effect: white, RGB or RGBW

For a fixed, crisp white effect in shaped sign letters, the 5 m white S-type strip is 10,000 K. For changing colours along shaped runs, the 10 m Magic RGB S-type reel uses an SM16703 control IC and needs a compatible controller. A straight RGB strip produces selectable colour effects on linear runs. A straight RGBW strip adds a dedicated white channel as well as RGB colour control.

The effect you want determines more than the tape. Confirm the matching controller and power supply, and decide whether individual LEDs will be concealed behind a sign face or visible to viewers. If you want an exposed, continuous-looking line of light, neon flex may be a better fit than bare LED tape.

Read our RGB and RGBW comparison for the colour choices in this range.

Match voltage, lengths and power

Our two S-type reels are 12 V DC. Our straight RGB and RGBW reels are 24 V DC. Neither number is a universal mark of quality or brightness: the complete electrical design depends on the exact reel, length, load and control method. Never connect a 12 V strip to a 24 V supply or assume controllers are interchangeable.

Long runs and separated sign letters may need additional power feeds to manage voltage drop. Plan the lit length of each section, how the cable will reach it, and the total load before ordering. Our 12 V versus 24 V guide explains what to check with DSS.

Check cutting and installation conditions

Our white S-type reel is free-cut at suitable points between components. The Magic RGB and straight reels are not advertised as free-cut; confirm the permitted cut points before designing short sections. See the cutting guide for the product-by-product distinction.

The two S-type strips have an IP54 rating as supplied, which means splash resistance, not submersion. Our straight RGBW strip is IP20 for dry indoor installations. We have not confirmed the IP rating of the straight 5050 RGB reel. Cutting, joining or leaving connections exposed can change the protection of the finished system. For outdoor or damp installations, discuss the whole enclosure, connections and power arrangement, not just the strip's listed IP rating.

A useful brief for DSS

Send a sketch or photo of the sign, the shape and length of each lit run, the desired colour or effects, indoor or outdoor location, and whether you need to cut or join the tape. Add any existing power supply and controller details. We can then check the reel against the build and point you to the right product specifications.

For a finished custom sign rather than a reel of components, read how DSS plans LED strip lighting for signs and explore our LED and digital signage service.