The High Noon Power Pro is feature rich spotlight that has one additional feature that is not common to other rechargeable handhelds, it can be used continuously, without recharging, by USB, 110V AC or 12V DC power using the included cable and vehicle adaptor or with a USB wall adaptor (not included). The integrated low battery indicator glows red when charging, green when fully charged and amber when battery has 20% or less capacity remaining. The Power Bank feature turns this light into a charging station for your smart phone or other USB-charged device.