Fangrui Product Details [high Brightness Usb Rechargeable Bulbs]-these 9w Rechargeable Led Bulbs Are Built With An Upgraded Large-capacity 2000mah Battery . You Can Charge The Bulb Using The Provided Micro-usb Cable Or 5-volt Adapter. It Takes 4-6 Hours To Fully Charge And Lasts 6-9 Hours Of Operation. [led Bulb With Remote Control]-the Included Remote Control Is Easy To Operate And Allows You To Quickly Turn The Light On And Off, Select From 4 Lighting Modes (high/medium/low/sos Signal Light) And Set A Timer (15 Minutes/30 Minutes/60 Minutes/240 Minutes) Across Space, The Working Range Is 10 Meters. Led Bulbs Come In Handy If You Install Them In Hard-to-reach Locations. [4 Lighting Modes And 4 Timer Settings]-this Battery Light Bulb Has High, Medium, Low And Modes And A Memory Mode That Allows The Light Bulb To Automatically Turn On To The Last Used Brightness. You Can Use The Light Mode Of In A Variety Of Conditions. [more Than Just An Led Bulb]-the Rechargeable Led Bulb Features An Easy-to-carry Handle And Non-slip