Abstract: The present invention is a lighting device with color temperature control function, including two modulated power input ends, a rectifier that rectifies the modulated power and outputs a rectified modulated power, a first LED module and a second LED module that have different color temperatures, and a dimming control unit. The modulated power includes multiple cycles of a sinewave, and each cycle of the sinewave has a firing angle. The dimming control unit reads a lighting modulation command code that is carried in the modulated power according to the firing angle of each cycle, and controls the luminous intensity of the first and second LED modules respectively to perform a designated combination of color temperature of lighting effect.

Abstract: A LED illumination device includes a carrier structure, a suspension structure, and a light-emitting structure. The carrier structure includes a carrier body and a first heat-conducting body fixedly disposed inside the carrier body. The carrier body has an outer thread structure disposed on an outer perimeter surface. The first heat-conducting body has a bottom contacting surface exposed from a bottom side of the carrier body. The suspension structure includes a first suspension element detachably disposed on a top side of the carrier body. The light-emitting structure includes a circuit substrate and a light-emitting unit. The circuit substrate is detachably disposed on the bottom side of the carrier body to contact the bottom contacting surface of the first heat-conducting body, and the light-emitting unit is disposed on the circuit substrate. Therefore, heat generated by the light-emitting unit is guided to the first heat-conducting body through the circuit substrate.

Abstract: A LED illumination device includes a carrier structure, a suspension structure, and a light-emitting structure. The carrier structure includes a carrier body and a first heat-conducting body fixedly disposed inside the carrier body. The carrier body has an outer thread structure disposed on an outer perimeter surface. The first heat-conducting body has a bottom contacting surface exposed from a bottom side of the carrier body. The suspension structure includes a first suspension element detachably disposed on a top side of the carrier body. The light-emitting structure includes a circuit substrate and a light-emitting unit. The circuit substrate is detachably disposed on the bottom side of the carrier body to contact the bottom contacting surface of the first heat-conducting body, and the light-emitting unit is disposed on the circuit substrate. Therefore, heat generated by the light-emitting unit is guided to the first heat-conducting body through the circuit substrate.

Abstract: An AC LED lamp structure includes a light-emitting module and a protection module. The light-emitting module includes a circuit substrate positioned on a carrier body and a light-emitting unit disposed on the circuit substrate. The protection module includes a transparent element disposed under the light-emitting unit and separated from the light-emitting unit and a plurality of connection components connected between the transparent element and the carrier body for positioning the transparent element under the circuit substrate by a predetermined distance. Therefore, the flammability class of the AC LED lamp structure is increased by using the transparent element. The predetermined distance from the transparent element to the circuit substrate is smaller than a finger of a user in order to prevent the finger of the user from touching the circuit substrate through a gap between the transparent element and the circuit substrate, and avoid electric shock.