Abstract: A lamp apparatus with an alarm function is disclosed, which includes a power supply circuit and a base, and a light and a gas warning apparatus mounted on the base. The gas warning apparatus comprises an alarm device and a gas sensor. The gas sensor transmits an actuating signal to the alarm device for triggering the alarm device to actuate an alarm correspondingly when the gas sensor detects a hazardous gas. Therefore, the gas warning apparatus mounted within the lamp not only uses the power of the lamp for supplying the necessary power continuously but also eliminates unsightly other wiring.

Abstract: An optical induction/trackball dual-mode mouse is disclosed to include a mouse body, a trackball module installed in the top of the mouse body, a cursor control optical induction module installed in the bottom of the mouse body, and an induction switch mounted inside the mouse body, the induction switch adapted to switch to use the cursor control optical induction module when the mouse body is put on a flat surface, and the induction switch adapted to switch to use the trackball module when the user holding the mouse body in midair.

Abstract: An optical induction/trackball dual-mode mouse is disclosed to include a mouse body, a trackball module installed in the top of the mouse body, a cursor control optical induction module installed in the bottom of the mouse body, and an induction switch mounted inside the mouse body, the induction switch adapted to switch to use the cursor control optical induction module when the mouse body is put on a flat surface, and the induction switch adapted to switch to use the trackball module when the user holding the mouse body in midair.