Non-polar lamp for road lighting

This invention discloses a road lighting non-polarized lamp used in solving the problem of road lamp illumination with sensed visual spectrum of high voltage Na lamp not in conformity with man-eye including a high frequency generator, a coupler and a discharge bulb, among which, the coupler is set in the concave internal tube of the discharge bulb coated with phosphor powder of multiple primary colors on the internal surface, the energy distribution concentrates on 515+10nm, 527+10nm and 545+10nm.