1. who are we?We are based in Zhejiang, China, start from 2005,sell to Western Europe(50.00%),Eastern Europe(21.00%),SouthAmerica(15.00%),Southeast Asia(5.00%),Northern Europe(3.00%),Eastern Asia(2.00%),Africa(1.00%). There are total about 101-200 people in our office.2. how can we guarantee quality?Always a pre-production sample before mass production;Always final Inspection before shipment;3.what can you buy from us?Solar Charge Controller, Power Inverter, Solar Power System, Battery Charge4. why should you buy from us not from other suppliers?we have 13 years professional manufacture experiments. and we have research center in shanghai and shenzhen. Patents:more than 100;Turn over:20 Million USD;Productivity: 50,000pcs monthly ; With High-Level R & D;Launch new products every month,5. what services can we provide?Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES；Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;Language Spoken:English,Chinese,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Korean,Hindi,Italian