Lambda has extended its HWS family of compact single-output power supplies to include models approved for use in medical equipment and others that perform reliably in harsh conditions. The new HWS-ME medical supplies are available with ratings from 30W to 1,500W, while the heavy-duty versions are offered with ratings from 50W to 1,500W. All models typically require 60% less space than previous generation products, and all are suitable for operation from inputs in the range 85-265Vac at 47-63Hz, or 120-370Vdc (except 1500W models), without the need for switching or adjustment. The HWS-HD heavy-duty supplies will start up at temperatures as low as -40°C depending upon input voltage and load conditions. They are available with output voltages from 3.3V to 48V in versions rated at up to 600W, and 12V to 48V in 1,500W versions.