Description: Product size:16*4*2cm Product packaging:boxed Packing size:20*10*2.5cm Light source power:3.2 rated power (W) Current rated current:390m (A) Voltage:DC5.0V (V) Service life:8640 (hours) Product material:electronic components + ABS led reading light,rear car ceiling lamp,indoor trunk car roof light,magnetic led car shape night light,home lighting,general led light,car interior led light,usb rechargeable reading light,rechargable push light Size chart： 16*4*2cm Package included： 1* light 1* charging cable 1* double-sided tape 1* iron piece 1* adhesion promoter 1* instruction manual Notes: 1. 1 inch = 2.54 cm 2. Please measure it yourself to choose the right size. 3. Due to the difference between the different displays, the picture may not reflect the actual color of the item. Thank you! Non-destructive installation, magnetic adsorption, long battery life. Color variable magnetic adsorption is available at any time. High brightness performance, stable low light attenuation scattering angle. Constant current control circuit protection circuit extends life. The professional IC constant current power supply provides stable current for the lamp bead. It uses high quality capacitor stability to ensure circuit safety. The overcurrent protection function extends the service life and protects the original vehicle circuit.