Abstract: Lighting control systems are disclosed, which are configured to detect a rate at which a total current from a current driver is being changed. The total current is an amount of current for a plurality of LED channels comprising a first LED channel and a second LED channel. The systems are also configured to control a first current to the first LED channel and a second current to the second LED channel, the first current and the second current each being a portion of the total current. The controlling comprises: when the rate is detected as being a first slope, changing a ratio of the second current to the first current; and when the rate is detected as being a second slope different from the first slope, keeping the ratio constant while the total current is adjusted according to the dimmer control.

Abstract: Lighting control systems are disclosed, which are configured to detect a rate at which a total current from a current driver is being changed. The total current is an amount of current for a plurality of LED channels comprising a first LED channel and a second LED channel. The systems are also configured to control a first current to the first LED channel and a second current to the second LED channel, the first current and the second current each being a portion of the total current. The controlling comprises: when the rate is detected as being a first slope, changing a ratio of the second current to the first current; and when the rate is detected as being a second slope different from the first slope, keeping the ratio constant while the total current is adjusted according to the dimmer control.

Abstract: Lighting control systems are disclosed that have a plurality of current sensors and a microprocessor. A first current sensor in the plurality of current sensors measures a first current of a first LED channel, and a second current sensor measures a second current of a second LED channel. The microprocessor is configured to set a setpoint that defines a maximum current for a dimming profile of a lighting fixture, and control a biological light ratio according to the dimming profile. The ratio may be an M/P ratio of melanopic lux to photopic lux or an OPN5/OPN4 ratio of OPN5 lux to melanopic lux. The dimming profile correlates the ratio to a percentage of the maximum current.

Abstract: Lighting control systems are disclosed that have a plurality of current sensors and a microprocessor. A first current sensor in the plurality of current sensors measures a first current of a first LED channel, and a second current sensor measures a second current of a second LED channel. The microprocessor is configured to set a setpoint that defines a maximum current for a dimming profile of a lighting fixture, and control a biological light ratio according to the dimming profile. The ratio may be an M/P ratio of melanopic lux to photopic lux or an OPN5/OPN4 ratio of OPN5 lux to melanopic lux. The dimming profile correlates the ratio to a percentage of the maximum current.

Abstract: Lighting control systems are disclosed that have a lighting fixture, a microprocessor, and a single dimmer control that enables a user to adjust a total current to the lighting fixture. The lighting fixture includes a first LED channel that emits a first spectrum comprising white light and a second LED channel that emits a second spectrum comprising biologically-tailored light. The microprocessor is configured to take measurements of current, store a plurality of average values of total current, set a setpoint that defines a maximum current for a dimming profile of the lighting fixture, and control a biological light ratio according to the dimming profile. The ratio may be an M/P ratio of melanopic lux to photopic lux or an OPN5/OPN4 ratio of OPN5 lux to melanopic lux. The dimming profile correlates the ratio to a percentage of the maximum current.