Item description from the seller

Item description from the seller
Solar Charger —— Backup Battery
1) Built-in Dual 5V/2.1A USB Output allow you to charge two devices simultaneously, compatible with iPhone, Android.
2) Portable solar charger is equipped LED flashlights, It is an essential outdoor equipment
3) IP65 Splashproof, Dustproof, Shockproof. It can be used in humid environments or rainy days, but does not support FULL Immersion in water.
4) Daily USB charging and Biuble Emergency Solar charging. Provide more convenience for your daily life or travel.
5) Equiped dual bright LED Flashlights with three modes (Steady-SOS-Strobe). It allows you to light up the road, even send a signal for help in an emergency.
Specifications：
  • Solar panel: 2W
  • Input: DC 5V 2.0A
  • Output1: DC 5.0V 1.0A (Max)
  • Output2: DC 5.0V 2.1A (Max)
  • The battery indicator: LED indicate
  • Compatible with:Universal
 
How to use LED mobile phone:   
1.  Double click the switch quickly to turn on the LED light   
2.  Press the switch once again to change the brightness frequency   
3.  Double click the switch quickly to turn off the LED light
Included:
  • 1 x Dual USB Solar Power Charger 
  • 1 x USB Charger Cable
  • 1 x package box
  • 1 x Lanyard
 
Kindly note:
1. In order to fully activate the battery, please charge it via outlet or computer for 10 hours at least at the first 2-3 uses.
2. The energy transformation from solar to electricity is rather slow and the solar charging speed is subject to sunlight intensity and panel conversion rate. In daily life, we highly recommend charge it via wall outlet.
3. Fully charging by outlet takes approximately 10 hours. Do not charge it all day nor over voltage.
4. For safety, DO NOT leave the power bank charging in car in case of high temperature and avoid crashing. Do not make charge while charging itself.
5.Solar charging is supplemental, please do not rely on it for full charge.
6. To turn on/off the LED light, please double quick press the power button.
Note Please: 
1.9000000 mah is a theoretical capacity from the company.You can charge your phone 1-3 times(depending on your phones conversion rate)
2.Solar panel is just a special design，please charge it via socket