Lighting
LED Driver Current Calculator
LED Driver Current Calculator is meant for one defined lighting case. Run a separate case when the equipment, period, or connection changes.
Check Drive current
LED Driver Current updates live after each input change.
Inputs to verify for LED Driver Current
Collect Driver output power, and LED string voltage from the same operating case before reading drive current.
- Driver output power
- Enter driver output power in W. Default shown: 25 W.
- LED string voltage
- Enter LED string voltage in V. Default shown: 36 V.
When driver output power is uncertain, run a low and high case instead of hiding that uncertainty in one entry.
How drive current is calculated
The Drive current value and any supporting metrics belong to this same LED Driver Current case, not to a nearby run with different inputs.
Read the LED Driver Current equation from the units on this page. A familiar symbol can shift meaning between DC, AC, energy, component, or billing work.
A clean LED Driver Current result confirms the arithmetic for drive current; it does not prove the equipment rating or source data is the right one.
Only the entries shown on LED Driver Current feed drive current. If another correction factor matters, keep it in the notes or make a separate run.
LED Strip Power Supply is a separate worksheet; carry over drive current only with its units and source note.
Applying drive current carefully
The result card gives a comparison point for LED Driver Current. Equipment ratings, safety margins, and manufacturer limits still need their own check.
LED Driver Current changes with mounting height, beam shape, surface reflectance, and driver limits.
A separate LED Strip Power run is cleaner when that result becomes the real design question.
Records for led string voltage
Keep fixture model, mounting height, distribution angle, and target plane with the LED Driver Current result.
If a later LED Driver Current run changes only driver output power, label it as sensitivity work. Several changed conditions deserve a new baseline.
When your notes point to LED Array Configuration, open it after saving this baseline so the two cases do not get mixed.
Detail checks for drive current
LED Driver Current depends on lighting geometry. Mounting height, spacing, beam shape, and surface reflectance can change the usefulness of the answer.
When drive current becomes an input to another worksheet, copy the value only after the units and source condition have been verified.