1.used for car, ship, camping 2.small volume 3.light weight 4.small vibration 5.high efficiency,good reliability ... .5211.01.063.62350072.062.2245.01.043.55 QDZH30G 3.0200051.644.6176.01.053.58250063.655.0217.01.053 ... .3254.01.063.62350086.474.7295.01.043.55 QDZH35G 3.5200060.051.9204.61.083.68250073.063.1248.91.073 ...