This set consists of one cigarette lighter power socket and one digital voltmeter. The voltmeter can check the voltage and display clearly in red LED. The power socket is used for connecting with the US standard cigarette lighter charger adapter plug， to charge the mobile phone， GPS， camera， MP3 or other electronic products.<br><br><strong>Features:</strong><br>One cigarette lighter power socket plus one digital voltmeter.<br>Over-load and short circuit protection， reverse polarity protection.<br>With waterproof sealing cap， good waterproof performance.<br>Fits for 12-24V motorcycle， auto， boat.<br>Comes with shell， screws and terminals， easy to install.<br>The power socket is used for charging only， not for lighting the cigarette.<br><br><strong>Specifications:</strong><br>Color: Black<br>Power Socket Input Voltage: DC 12-24V<br>Power Socket Input Current: 15A 12V， 10A 24V<br>Power Socket Max Output Power: 240W<br>Voltmeter Measureing Range: 6V-30V<br>Voltmeter Display: Red LED Digital Display<br>Material: ABS<br>Item Size: Approx. 9.9 * 8.6 * 5cm / 3.9 * 3.4 * 1.9in<br>Item Weight: Approx. 99g / 3.5oz<br>Package Size: Approx. 22 * 15 * 5cm / 8.7 * 5.9 * 1.9in<br>Package Weight: Approx. 113g / 4.0oz<br><br><strong>Package List:</strong><br>1 * Cigarette Lighter Power Socket + Voltmeter Set in Shell<br>1 * Pack of Screws and Terminals