Abstract:
An AC LED module with an improved power factor for coupling with an AC source includes a plurality of LED strings and a plurality of connecting-to-middle drive elements. The LED strings are coupled in parallel between two ends of the AC source, and each of the LED strings further includes a respective number of LEDs connected in series. The connecting-to-middle drive element assigned to a respective LED string has two connection point, one connected to one end of the AC source while another being connected with a middle point between two consecutive LEDs in the same LED string.
Abstract:
A lamp assembly (30) includes a lamp device (34) mounted detachably on a stand unit (32). The lamp device (34) includes a lampshade (41) for receiving a light emitting element (40). An electrical connector (42) is coupled electrically to the light emitting element (40) and a power source (50) in such a manner that when the lamp device (34) is mounted on the stand unit (32), the electrical connector (42) is plugged into the power source (50) so that the light emitting element (40) is supplied with electricity by the power source (50). A storage battery module (43) is coupled electrically to the electrical connector (42) and the light emitting element (40) so that when the lamp device (34) is mounted on the stand unit (32), the storage battery module (43) is charged by the power source (50) via the electrical connector (42). When the lamp device (34) is detached from the stand unit (32), the light emitting element (40) is supplied with electricity by the storage battery module (43).
Abstract:
An AC LED module includes a substrate, a bridge rectifier unit a constant current unit and an LED chip set. The bridge rectifier unit mounted on the substrate further includes an output and an input coupled with an AC source. The constant current unit, mounted on the substrate and coupled with the output of the bridge rectifier unit, further includes at least one current regulative diode. The LED chip set mounted also on the substrate is electrically coupled with the constant current unit.
Abstract:
An LED (Light Emitting Diode) module (30) includes a base seat (32) and a plurality of LEDs (34). The base seat includes a planar portion (3202) having a planar external surface and a straight portion (3204) connected to the planar portion, and having a straight external surface. The plurality of LEDs includes a first LED mounted on the planar external surface of the planar portion to emit light rays in the facing in a vertical direction (D1) and a second LED mounted on the straight external surface of the straight portion to emit light rays in the horizontal direction (D2).