Electricity Saving Box 30kw or 50kw dual, 100% ABS, CE Available Function: Improve Power factor / harmonic filter / eliminates emf / transient surge protector Intelligent electric Power saver for home, Shop, School, etc... Search Exclusive Distribution agent for every country OEM your brand 50kw CE Available Patent Design, protect your market. Material: 100% ABS, Hi quality, Heavy Rated Voltage: 90V-250V Rated Frequency: 50/60Hz Big size: 130*80*40mm. 40pcs/box.