power 4dPower of the lens (P) = 4 D. Refractive Index (r) = 1.5. To Find: The radius of curvature. Calculations: The following equation determines a lens's power: where P is the power ofPower RDW Professional Type NR 8004D dengan memiliki 4 cxxnel, dengan speck 4 x 850 watt di 8 ohm 4 x 1850 watt di 4 ohm 4 x 2600 watt di 2 ohm 3200 watt di