This flat one sided solar lantern concentrates is light in one direction.  The Solar Navigator SL9100WLED is considered among many to be the best solar lantern avaible.  Its 24 LED's light up to argueable the brightest Solar Lantern.  The LED's are not only very bright but last an extremely long time  and are extremely energy effeicent making the internal 4 amp battery last a long time at even the brightest setting.  The SL9100WLED has a USB charging port and even an AM/FM Radio with NOAA Weather Channels making it an emergency weather radio as well as a solar camping lantern.

The internal 4 amp recharable seal lead acid battery is also replaceable which is important.  After many years when your solar lantern out lives the battery you just replace the battery instead of replacing the whole unit.  The Solar lantern can be charged with the included auto adaptor and UL listed AC house adaptor which are stored in the back of the unit. This Solar Lantern also has a built-in auto on emergency feature in a power outage.  Leave it plugged into the house with the AC adpater with the on/off switch in the on position and if there is a power failure, the light automatically turns on. The SL9100W's durable design makes it perfect for camping, boating or emergency lighting for power failures caused by hurricanes, tornados, earthquakes or other emergencies. This lantern is also very popular in Africa in places where they need a reliable constantly used bright source of light.

The SL9100W LED solar rechargeable lantern is perfect for any activity that requires bright, dependable light.  The lantern has two brightness positions, which use 12 LEDs or 24 LEDs. There is a pivoting light reflector that allows you to direct the light output for maximum illumination. This is the brightest, longest lasting and highest quality Solar Powered Lantern we've found. The SL9100W LED model comes with AM/FM Radio with the Weather Channel, this makes the Navigator perfect for keeping informed in case of emergencies.

Features

• 24 super bright LEDs
• LED Light Settings: High, Low and Off
• AM/FM Radio
• NOAA Weather Channels (all 7 channels)
• USB Charging Out Port. Great to charge Cell Phones
• Powerful Pivoting Light Reflector
• Impact Resistant Lens
• Automatic emergency lighting during power failure if plugged in for charging
• Retractable Carrying Handle for easy storage
• Rugged ABS construction
• Solar Panel Can Be tilted 120 Degrees
• AC house adaptor (included)
• DC 12V car plug (included)
• Rechargeable and Replaceable 6V/4AH sealed lead acid battery
• Over-charge/over-discharge protection
• Function Indicator Lights
• 30 hours for a full charge by solar panel in bright sunlight 18-20 hours using the AC adaptor or 12V car plug.

Specifications

• Light Output: 10-20 hours
• Solar panel: 2.63W/8.1V
• USB Port for Charging Cell Phones and other USB electronics
• Battery: 6V 4ah Sealed Lead Acid Rechargeable Battery
• AM/FM Radio with NOAA Weather Channels (all 7 channels)
• Dimensions: 8.27 x 3.15 x 14.57 inches / 21 cm x 8 cm x 37 cm
• Warranty: 90 days