La description
18 v test current 0.45 A = 8.1 W.
Test current 0.65 A = 24 v power 15.6 W.
Test current 0.75 A = 36 v power 27 w.
Test current 0.9 A = 48 v power 43.2 W.
55 v test current 0.91 A = 50 w.
Maximum working voltage is 72 v, the power is bigger
Can do cars booster used, air volume powerful!