Features: Includes 5pcs high quality 2N3055 power transistors. Rated Current: 15A. Collector-Emitter Voltage: 100V. Made of stainless steel material for anti-corrosion. Specifications: Material: Stainless Steel Transistor Type: NPN Rated Current: 15A Operating Voltage: 60V (Max.100V) Collector Current: 15A Module Size: 3.8 * 2.5 * 0.8cm / 1.50 * 0.98 * 0.31in Hole Diameter: 4mm / 0.16in Package Size: 9 * 4 * 2cm / 3.54 * 1.57 * 0.79in Package Weight: 48g / 1.69oz Package List: 5 * 2N3055 Power Transistors