Model: B50

Supports nozzles: 1 – 10

Wattage: 25W 

Model: B150

Supports nozzles: 12 – 24

Wattage: 50W

Model: B500

Supports nozzles: 18 – 32

Wattage: 70W

Model: B800

Supports nozzles: 26 – 42

Wattage: 80W