LED modules often have capacitors to reduce flicker. The LED, the capacitor and other electronic components are generally arranged on a printed circuit board. This patent allows for smaller form factors by separating LED and capacitor into two separate structural units. This comes in handy when the form factor of an LED module or fixture needs to be small, such as in poorly accessible areas.
This new technology shows an LED with receiver circuit for wirelessly tapping energy from alternating field.
Read about this way of dimming lights by directly interfering with the main power supply.
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