1. Light color: white; 1 to 4 batteries can be used, install only one battery can still be used.<br />2. USB output: 1A, voltage: DC 5V, can charge for headlamps,car lights and cellphones.<br />3. 3 modes:  bright light, low light, strobe.<br />4. Lumens up to 300 lumens, use four 18650 lithium batteries (not included).<br />5. Have a cloth bag to carry convenient.<br /><br /><br /><br /><img src="http://img6.eachbuyer.com/x9/p100/cq588_1.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x9/p100/cq588_2.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x9/p100/cq588_3.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x9/p100/cq588_4.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x9/p100/cq588_5.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x9/p100/cq588_6.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x9/p100/cq588_7.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x9/p100/cq588_8.jpg" / noproxy>