Abstract: An illuminating device can comprise two substrates each having two surfaces, one of each can be configured to mount solid-state lighting devices wherein the two substrates are separated by a defined gap. The two substrates are electrically and mechanically connected and can support or be supported with an enclosure such as an optic. This configuration provides thermal decoupling and uniform illumination when assembled as per the embodiments explained.

Abstract: A downlight apparatus includes a heat dissipation unit, a light source, a driver module, a light guiding module, a light guiding unit and a protruding portion. The protruding portion has a top portion and an enlarging portion. The top portion is attached to the heat dissipation unit and has a smaller diameter than the enlarging portion.

Abstract: A lighting apparatus includes a light source module, a driver, an electrical pin, a neck structure, a light passing cover and a base container. The light source module includes a LED module. The driver converts an external power source to a driving current supplied to the LED module. The electrical pin is to be plugged to an electrical socket to connect to the external power source. The neck structure has a light opening and a buckle groove. The light passing cover has a connector attached to the buckle groove. A light is emitted from the LED module passes through the light opening to the light passing cover. The base container contains the light source module and the driver. The base container fixes the electrical pin to have an exposed portion to be inserted to the electrical socket.