Regulated DC Power Supply to power up your Twisty Skulls. Output Rated at a full 5 Volts 4 Amps Max to power up to 2 Twisty Skulls (up to 8 Servos) at once. Fully regulated with short circuit and overload protection built-in. Extra heavy duty input (110 to 240 VAC) and output power leads for long lasting performance. 6 Foot AC Power Cord Included.