Weller wt 1 90w and wt 1h 150w power supply units 230v weller t0053435399 the weller wt 1h 150w power supply unit represents the next generation of single channel soldering stations its detailed liquid crystal display gives an unprecedented overview of all functions which are quick and easy to reach via the new user friendly menu button weller wt 1h 150w power supply unit 230v