LED light tube apparatus

An LED light tube, comprising:

• an LED strip having a substrate plate and multiple LED modules, the multiple LED modules being mounted on the substrate plate;
• a light passing tube, having a main portion, a first end portion and a second end portion, the first end portion and the second end portion being placed at two opposite ends of the main portion, the light passing tube being used for storing the LED strip;
• a first end cap attached to the first end portion of the light passing tube, an exterior surface of the main portion defining a peripheral edge line, the first end portion having a tilt curve portion with a tilt angle between the peripheral edge line and an exterior surface of the first end portion, the tilt angle being between three degrees to ten degrees;
• a second end cap attached to a second end portion of the light passing tube, the first end cap and the second end cap each having two pins;
• and
• a driver enclosing in one of the end caps for supplying a driving current to the multiple LED modules and for controlling the multiple LED modules, wherein the first end cap has an extended electrode for connecting to an attached device for providing an external power to the attached device, wherein the attached device is detachable from the first end cap to be replaced with an another attached device, the another attached device provides a different function as the attached device.