My homemade USB LED nightlight

This nightlight, that I made has a USB plug to plug it to a 5v USB power supply, it uses a cool white cone type LED, and its resistor is 470 ohm, which makes the current at 0.011mA through the LED, in which I took my thermal gun, and it was around 76°F to 79ºF. Plus the watts on this is about approximately 0.0022w on my calculator. Then I wrapped in electrical tape to protect the leads. It can be also used as a mini lantern by a 5v portable battery charger that charges your cell phone. Plus I solder this all by myself.