Three core lines cover most interior runs.
CV Strips (12/24/48 V DC) at 4/9/14/24 W / m deliver ≈300–2 000 lm / m; cut points 25/50/100 mm by voltage. CRI 80 and CRI 90 (R9 > 50 on select bins) in 2700/3000/3500/4000/6500 K, ≤3 SDCM. COB Strips use continuous phosphor for dot-free direct view, 8–20 W / m, 600–1 800 lm / m, bend radius ≥40 mm. TW/RGBW variants sit on dual-track or 5-in-1 copper for tunable white or ambience; DT8/DMX control ready. Operating window −20…+45 °C; Tc targets ≤85 °C on metal carriers. This is the layer most planners shorthand as spl lighting flexible led strips when specifying coves, reveals, and shelves.
Profiles come recessed, surface, corner (30°/45°), and pendant in 1/2/3 m bars, 6063-T5 anodised, with opal or micro-prismatic PMMA/PC. Deep chambers erase pixelation at ≤14 W / m; shallow bodies maximise punch for wall-grazing. Optional batwing films widen desk uniformity, and glare kits keep UGR ≤ 19 in office grids. End-caps use compression gaskets; sealed lids and UV-stable lenses are available where sun or wash-down adjacency matters.
Rigid PCBs on aluminium cores (280–560–1120 mm) simplify OEM builds and gear-tray retrofits. Typical nodes 6/12/18/24 W per board at 150–190 lm / W (4000 K, CRI 80). CRI 90 boards target 120–150 lm / W with R9 support. Connect with poke-in terminals or JST; through-holes align with standard tray patterns. Use parallel strings per driver channel to hold current below 65% of rating for life margin.
Spring clips and screw-through saddles match each profile; 3-axis grippers hold pendants level. Adhesive tapes are thermally conductive—bond to anodised aluminium, never bare gypsum. Feed guidelines: 24 V up to ~5 m per injection on 2×1.5 mm² (target <3% drop); 48 V doubles reach. For multi-segment lines, centre-feed or both-ends power and keep polarity marked at each joint.
Constant-voltage drivers to EN/IEC 61347-2-13 with IEC 62384 performance. Indoor PF ≥ 0.90 (≥50 W drivers), THD ≤ 15 % typical; surge 2 kV L-L (ask 4 kV near VFDs/lifts). Interfaces: PWM, 1–10 V, DALI-2 DT6 (single CCT) and DT8 (tunable white), plus DMX/RDM for show control. Flicker on pro lots targets PstLM ≤ 1.0 and SVM ≤ 0.4; pick high-frequency PWM where cameras are present. EM kits: maintained 1–3 h via compatible CV drivers and test inputs.
LED modules per EN 62031 with LM-80 sources and TM-21 projections (L80 50–60k h at Ta 25 °C on project bins). System EMC EN 55015/EN 61547; mains quality EN 61000-3-2/-3-3. Profile-built luminaires follow EN/IEC 60598-1; glands to EN 62444—match ferrule to jacket OD or IP will fall.
Corner/inline joiners, lens kits (opal/prism/clear), end-caps, live-end feeds, mid-feeds, and gel boots form the service set. Label strips and printable tags keep run IDs and injection points clear during FAT/SAT. Stock diffusers and gaskets as spl lighting lighting accessories at 2–3 % overage—diffusers are the first casualties late in the program.
Coves and lobbies: CRI 90 at 2700/3000 K, dot-free COB under opal. Desks/learning: 3500/4000 K with micro-prism and batwing optics for uniformity. Retail edges: high-density strips in Corner Grazer for texture; match CCT to pendants to avoid colour steps. Back-of-house: value CRI 80 strips in Slim Reveal for guidance lines. Cold rooms: glass-jacket strips or sealed profiles; confirm −25 °C driver start.