Abstract: A solar tracking device includes a base, a first driving member, a turntable, a translating plate, a second driving member and a solar panel stand. The first driving member includes a first rotary gear. The turntable has an outer gear ring and a track. The outer gear ring is engaged with the first rotary gear to drive the turntable to rotate with respect to the base. The translating plate is accommodated in the track. The second driving member includes a second rotary gear installed at the translating plate and engaged with the track to drive the translating plate to move horizontally along the track. The solar panel stand includes a main frame and first and second link rod frames. The main frame is driven by the first and second link rod frames to adjust the angle of elevation with respect to the translating plate.

Abstract: A sleeve-type heat dissipater for a lamp includes: a heat conduction module which includes a heat conduction base, a first heat pipe, a second heat pipe and a press plate; a first heat dissipation member which includes a primary tubular body and a plurality of secondary tubular bodies annularly arranged at the outer periphery of the primary tubular body, two ends of the first heat pipe are respectively received in each of the secondary tubular bodies; and a second heat dissipation member which is detachably sleeved with the heat conduction module and the first heat dissipation member, and formed with a pair of accommodation slots respectively allowing two ends of the second heat pipe to be accommodated. Accordingly, the heat dissipater provided by the present invention can be coordinately adjusted with respect to the lamp with different power for providing an optimal heat dissipation effect.

Abstract: A replacement LED lamp module for a street light includes a heat dissipating cover (10), a driver (20), and an LED module (30). The heat dissipating cover (10) has a receiving cavity (14) and a receiving recess (15) disposed inward of a bottom of the heat dissipating cover (10). The driver (20) is installed in the receiving cavity (14). The LED module (30) is disposed corresponding to the receiving recess (15) and fixed to the heat dissipating cover (10); the LED module (30) is electrically connected to the driver (20). Thus, the replacement of the LED lamp module can be achieved without affecting the main structure of the conventional street light.