038975489032 st300 philmore heavy duty 300 watt stepup stepdown transformer philmore heavy duty 300 watt stepup stepdown transformer weight 106.4 oz 110v ac to 220v ac or 220v ac to 110v ac on/off switch with indicator light, fused protection 300 watts power rating, non slip rubber feet 7 lbs. universal output receptacle warning: this device is an autotransformer. primary and secondary winding are not isolated from each other. use with care: avoid use in wet areas or on bare earth or concrete floors. important information safety information before you order a voltage converting transformer be sure that it is rated for more current ( in amps or watts) than the product you plan on using it with draws. these transformers list their maximum current in watts. your product may list the current it draws in amps. to find the apx. watts multiply the amps times the volts. so if your product is a 115 vac device that draws 1.6a you would need a transformer rated 184 watts or higher. if you are in doubt send us a question