Inputs

Luminaire current mA Enter a numeric project value in mA at or above 1. Driver output current mA Enter a numeric project value in mA at or above 1. Luminaire minimum forward voltage V Enter a numeric project value in V at or above 0.1. Luminaire maximum forward voltage V Enter a numeric project value in V at or above 0.1. Luminaire quantity Enter a numeric project value at or above 1. Driver minimum voltage V Enter a numeric project value in V at or above 0.1. Driver maximum voltage V Enter a numeric project value in V at or above 0.1. Wiring topology Choose the option that best matches the project condition.

Required driver current -- mA

Load minimum voltage -- V

Load maximum voltage -- V

Current match --

Match status --

Calculation details

Required driver current: -- mA
Load minimum voltage: -- V
Load maximum voltage: -- V
Current match: --
Voltage window match: --
Match status: --

Important notes

Confirm series or parallel topology, manufacturer voltage windows, thermal data, dimming behavior, and connector ratings.
This calculator provides planning support only and is not an installation approval or certification.

Formulas

Series wiring keeps the current requirement at one luminaire current and multiplies the forward-voltage window by quantity.
Parallel wiring multiplies the current requirement by quantity and keeps the forward-voltage window at one luminaire.
\(\displaystyle \mathrm{Compatible} = I_{\mathrm{driver}} = I_{\mathrm{required}} \land V_{\mathrm{driver\,window}} \supseteq V_{\mathrm{load\,window}}\)

Compare a constant-current driver against series or parallel luminaire current and forward-voltage requirements.

Constant-current Driver Matching Calculator is a planning aid. Keep the target source, product data, measurement method, and project assumptions with the result. Confirm compliance, installation, certification, and safety decisions with the responsible professional.

Inputs

Results

Formulas