A constant-current driver regulates LED current for compatible LED modules or luminaires.
A constant-current driver regulates output current for compatible LED modules. It must not be substituted for a constant-voltage load just because the wattage looks similar.
Technical meaning
A constant-current driver regulates LED current rather than holding a fixed output voltage.
It is used where the LED module or luminaire is designed around a specified current range and compatible voltage window.
Calculation use
Lighting notes should separate current-regulated driver data from voltage-rated LED strip load estimates.
Driver selection notes should keep current, voltage range, dimming type and luminaire compatibility visible as distinct fields.
Not the same as
A constant-current driver is not a generic replacement for a constant-voltage driver.
Matching a wattage value does not prove compatibility, safety or installation suitability.
Australian context
Australian lighting notes should treat constant-current driver details as equipment compatibility data and leave installation checks to the proper electrical pathway.
Examples
Example
Value
Planning note
LED module
specified current
The module data determines the driver current requirement.
Voltage window
driver compatibility range
The module string must sit within the compatible range.
LED strip
usually voltage-rated
Check whether the load is constant-voltage before using a strip driver estimate.