Total watts divided by 0.8, plus headroom. Undersizing is the cheapest saving and the most expensive mistake on site.
Drivers run hot and their life drops near full load.
Fix: Load the driver to 70-80% of its rating — that is the 1.3x rule.
DMX / SPI controllers and amplifiers draw power too.
Fix: Add controller and amplifier draw before sizing the driver.
Strip is DC; the power supply must be DC output with matching voltage (12V or 24V).
Fix: Match output voltage exactly — 24V strip on a 12V supply lights partially and fails.
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)
Continuous dot-free light line with chip-on-board technology. Uniform output with no visible LED spots, even on glossy or reflective surfaces.
10W/m (8W/m / 12W/m / 15W/m optional) · DC24V (DC12V optional) · IP20 / IP65 / IP67
Tell us the run and the driver you already have. We quote a combination that is compatible, not just cheap.