The size same as a credit card and no wire needs. It is very convenient because it can be placed inside the wallet. The interior has a LED light bulb, when you need light, you just fold the "Light Bulb" up then the light turns on. If you lower the "Light Bulb" then the light turns off. You can use it anytime and anywhere!

Features:

• compact and lightweight
• convenient and durable
• easy to use
• energy-saving and environment friendly
• portable credit card design