import * as THREE from 'three';
declare class SpotLight extends THREE.Group {
    private uniforms;
    needsRender: boolean;
    private startTime?;
    constructor(height?: number, radiusTop?: number, radiusBottom?: number);
    setTime(time: number): void;
    set attenuation(value: number);
    get attenuation(): number;
    set anglePower(value: number);
    get anglePower(): number;
    set color(value: THREE.Color);
    get color(): THREE.Color;
}
export { SpotLight };