So I'm a JRTC organizer. We go to the fields for 3 weeks every month. I needed an inverter to charge my phone and power my fan (because it's hotter than Ft Polk in Kenya). This inverter was all I needed. PROFESSIONAL. - 24 volt, therefore compatible with HMMWV. - Alligator clips are easy to connect to the battery terminal. - No need to disconnect/connect the car's electrical systems. Fully Reversible - Looks and feels like durable. He's very heavy. - Features a fan to prevent overheating. - Has an auto power off function to prevent battery drain. Cons: 1. Expensive but worth it.2. I wish the alligator clips were longer so I could mount the inverter next to the radio brackets. The actual length of the wire is about 18 inches long.