How to turn a drawing into an order line without an engineer in the room.
Measure the centre line of the run, not the wall length. Every corner, drop and indoor-outdoor crossing adds length. Add 5% for cutting waste.
A 60 m project at 10 W/m = 600 W load for the whole installation.
600 W of strip needs drivers rated at least 750 W. Buy 780-800 W, not 600 W.
24V: one feed per 5-10 m at 10 W/m, depending on the lead length. 12V: half the distance.
Compare lm/m and W/m; a cheaper reel with 30% less output costs more over the life of the project.
Total order = (drawing metres x 1.05 cutting waste) + 5% spares from the same batch.
High-efficiency SMD2835 strip — the most widely used solution for linear general lighting in commercial and residential projects. Available in 60 / 120 / 180 LEDs/m versions.
9W/m (120 LEDs/m); 5W/m (60 LEDs/m); 18W/m (180 LEDs/m) · DC12V · IP20 / IP44 / IP65 (IP68 with silicone sleeve on request)
Cost-optimized COB strip for projects that need a smooth light line at a balanced price point.
8W/m · DC24V · IP20 / IP65
Send the quantity and the market. We quote against this spec, with the tolerances written in.