This TEC peltier is not rated at 154 watts as advertised, its measured amperage is only about 3 amps at 12 volts or about 36 watts. That's barely 1/5 of that declared performance. Bought 2 and both are the same. The cable is also only 22 gauge, which is obviously not enough when it was 154 watts. It's just the standard cheap Chinese peltiers you'll find here, labeled TEC1-12706, which also run at the same power of around 30 watts, not 60 watts.