28 LED UV lamp， using purple beads with single  luminous flux of  6-7 lumens， violet wave length 395 ~ 400nm.<br />Compact， lightweight and easy to carry ， size: 92 x 44 x 28mm<br />With Anti-drop， anti-compression， wear-resistant features.<br />Battery:  3 x AAA (not included)<br />UV ultra violet can  identify authendicity of amber， foreign money and jade with fluorescence feature.<br /><br />terial: Aluminum<br />Color: Black<br />Size: 92mm (length) x 44mm (head) x 28mm (End)<br />Battery: 3 x  AAA batteries (not included)<br />Lamp beads: 28 LED UV<br />Light color: Purple<br />Purple wavelength: 395-400nm<br /><br /><img src="http://img6.eachbuyer.com/x9/p100/ck398_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/ck398_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/ck398_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/ck398_4.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/ck398_5.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/ck398_6.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/ck398_7.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/ck398_8.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/ck398_9.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/ck398_10.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/ck398_11.jpg" />