The GWS250 series 250W, green AC/DC power supplies comply with the European energy saving requirements of the Energy Related Products (ErP) Directive and achieve efficiency levels up to 93%. Standby power consumption is less than 0.5W under no-load conditions. Measuring 4.1” x 7.8” x 1.61”, the series consists of four models with nominal outputs of 12V, 24V, 36V, and 48V. Outputs are user adjustable by 20% depending on the model. The 24V and 36V models have a peak power rating of 300W. Other features include over-voltage, over-temperature and over-current protections. Pricing starts at $140 each/250. TDK-LAMBDA, San Diego, CA. (800) 526-2324.