Patent ID: 9243789
Filing Date: 2016-01-26
CPC Classification: A01G,F21K,F21V,F21Y,Y02P

Claim Text:
1. A plant lighting device, constructed at an indoor planting system planted with a plurality of plants, comprising: an illumination module, comprising an assembly seat, and an illumination unit comprising a plurality of light emitting elements that emit light toward at least one of the plurality of plants when powered up; and a power module, mounted on the assembly seat, comprising a power input line connected to an external power source to obtain an external power, a ring transformer module connected to the power input line and receiving the external power to perform power transformation, and a power output line connected to the ring transformer module and the illumination unit; the ring transformer module comprising a ring core, a primary coil winding around the ring core and connected to the power input line to receive the external power, and a secondary coil winding around the ring core and forming magnetic coupling with the primary coil to output a non-harmonic alternating current power to the power output line.