INTEGY SBEC 3A AND LOW BATTERY WARNING SYSTEMHigh frequency switching circuit provides receiver & servo stable power up to 3A continuous current. The output voltage is adjustable from 5.0V to 7.0V, low voltage ripple & low interference. Input voltage from 5V to 30V, bright blue LED indicates voltage is sufficient. When voltage is low, the blue LED turns off and a loud buzzer warn user about the low battery condition, low battery voltage point is adjustable using a precision VR port. 23x10x19 mm. Weight approx. 20g.