LED Driver Load Calculator
Use this LED driver load workflow for early lighting circuit load screening when driver wattage, quantity, power factor, and multiplier are known.
- Total driver watts
- W
- Total driver load
- VA
- Adjusted driver load
- VA
- Circuit current
- A
Calculation details
- Phase multiplier
- x
- Calculation basis
- Selection boundary
Recent results
Formulas
- Total driver watts = driver watts x driver quantity
- Total driver VA = total driver watts / power factor
- Adjusted driver VA = total driver VA x continuous multiplier percent / 100
- Circuit current = adjusted driver VA / (phase multiplier x voltage)
Use this calculator
Estimate total driver watts, total driver VA, adjusted VA, and circuit current from driver watts, quantity, power factor, multiplier, voltage, and phase.
Read the result
Review the calculated values with their displayed units and assumptions. The result is a planning aid for the stated inputs, not a final equipment or installation decision.
Check before final work
This LED driver load estimate is an arithmetic screen. It does not select circuits, breakers, conductors, dimming equipment, inrush allowances, or code compliance.
FAQs
Does this include LED driver inrush?
No. It estimates steady load from watts, power factor, and an entered multiplier. Driver inrush needs manufacturer data.
Can this determine the number of circuits?
No. It reports load current only. Branch-circuit layout, breaker selection, and conductor sizing need separate review.
Why enter power factor?
Power factor converts driver watts to VA for current screening. Use manufacturer data when available.