LED indicator allows you to identify the charging status, red means it's charging, green means it's full. Solid housing, durable in use, can use for a long time. Featuring short-circuit protection, your and your devices’ safety can be ensured. The charging time varies with different sizes of batteries, it takes about 6 hours to charge 12V 5-7AH, 10 hours to charge 12V 9AH, 13-15 hours to charge 12V 15-17AH. Specifications Material: Aluminium Alloy, ABS Input: AC 100-240V, 50-60HZ Output: 12V 1.30A Product Size: about 8.4 x 4.8 x 6.2cm/3.3 x 1.9 x 2.4in Power Cord Length: about 39cm/15.4in Notes: Please allow a slight dimension difference due to different manual measurements. Due to the light and screen setting difference, the item's color may be slightly different from the pictures.