1. the high quality and competitive prices 2. management certification:ISO9001:2000 3. save power, beautiful environment. Main technical indexes and specifications:1,Solar cell of single crystal silicon with utmost power 520mw2,Ultra high lightness LED,6 tubes3,Flash frequency:300±10time per minute(Frequency can be decided according to your own needs)4,Accumulator NI-MH1.2/1100mah or golden ...