An apparatus comprising a power converter system for providing compatibility between a dimmer and a load, wherein the dimmer provides a dimmer voltage (V Φ_DIM) to the power converter system, said dimmer voltage comprising three states: A. an approximately zero volt crossing of the dimmer voltage (V Φ_DIM) of the dimmer until a phase cut, leading edge of the dimmer voltage (V Φ_DIM); B. an end of state A until energy transferred to the load is sufficient to meet at least one energy transfer parameter; and C. an end of state B until a beginning of a next state A, the apparatus comprising a controller (302, 402) for controlling the power converter system, characterized in that the controller (302, 402) comprises: a low impedance path state controller (310, 404) configured to, for state A, enable a low impedance path for a dimmer current of the dimmer, wherein the impedance of the low impedance path is sufficiently low to maintain a stable phase angle of the dimmer; a switch mode power conversion controller (312, 406) configured to, for state B, control power conversion by the power converter system of the dimmer voltage; and control the power converter system to maintain the dimmer current above a current threshold; and an inactive state controller (314, 408) configured to, for state C, enter an inactive state, wherein during the inactive state the low impedance path and the power conversion are disabled. A. an approximately zero volt crossing of the dimmer voltage (V Φ_DIM) of the dimmer until a phase cut, leading edge of the dimmer voltage (V Φ_DIM); B. an end of state A until energy transferred to the load is sufficient to meet at least one energy transfer parameter; and C. an end of state B until a beginning of a next state A, the apparatus comprising a controller (302, 402) for controlling the power converter system, characterized in that the controller (302, 402) comprises: a low impedance path state controller (310, 404) configured to, for state A, enable a low impedance path for a dimmer current of the dimmer, wherein the impedance of the low impedance path is sufficiently low to maintain a stable phase angle of the dimmer; a switch mode power conversion controller (312, 406) configured to, for state B, control power conversion by the power converter system of the dimmer voltage; and control the power converter system to maintain the dimmer current above a current threshold; and an inactive state controller (314, 408) configured to, for state C, enter an inactive state, wherein during the inactive state the low impedance path and the power conversion are disabled. a low impedance path state controller (310, 404) configured to, for state A, enable a low impedance path for a dimmer current of the dimmer, wherein the impedance of the low impedance path is sufficiently low to maintain a stable phase angle of the dimmer; a switch mode power conversion controller (312, 406) configured to, for state B, control power conversion by the power converter system of the dimmer voltage; and control the power converter system to maintain the dimmer current above a current threshold; and an inactive state controller (314, 408) configured to, for state C, enter an inactive state, wherein during the inactive state the low impedance path and the power conversion are disabled.