LED Driver Current Calculator

How LED Driver Current works

The calculation uses P = V × I. LED Driver Current uses LED string voltage, Drive current to report Driver output power.

With the loaded values, driver output power evaluates to 25.20 W. Preserve the baseline before changing a value. Use Illumination Uniformity Calculator as the follow-up for uniformity ratio.

Inputs for LED Driver Current

LED string voltage and Drive current belong to LED Driver Current. Keep source units with led string voltage. Illuminance belongs in the separate Foot-Candles Lux worksheet.

The preset case is instructional rather than prescriptive. Enter the applicable electrical data.

LED string voltage

Example entry: 36 V.

Drive current

Example entry: 0.7 A.

Reading the LED Driver Current result

This output represents LED Driver Current.

Do not treat the calculated number as a component rating by itself. Check standard sizes, transients, protective margins, and manufacturer limits.

Measurement and units

Photometric results depend on fixture distribution, reflectance, mounting, maintenance, and the measured task plane. Check prefixes on led string voltage.

Keep the same electrical reference points across saved cases. For total leds, use LED Array Configuration Calculator.

Limits of this calculation

Allow for driver headroom and thermal derating. If the next question concerns minimum supply rating, open LED Strip Power Supply Calculator.

This equation represents one relationship rather than a full circuit simulation. Unentered effects remain outside LED Driver Current.

A useful LED Driver Current comparison

Save the initial driver output power before adjusting lED string voltage. A low and high case is more informative than adding an unexplained safety factor after the calculation.

Document the alternate led string voltage source.

Questions about LED Driver Current