Model No： 838A(with radio) /838C Specification Product Size： 11x8x30cm Carton Measure： 71.7*39*39.5cm Carton Qty： 24pcs Carton Weight： 13.3kg 20?f content： 6912pcs 1) Model 838A: 　　　a) Style: rectangularly jointed metal stilts and lampshade, available for 360?adjustments 　　　b) Power: AC 220V (50Hz), DC 5V (700 - 900mA) 　　　c) 20cm CCFL tube: long usage life for around 10,000 hours 　　　d) Built-in radio and digital alarm clock 　　　e) Built-in LED indicators on the base 　　　f) Suitable for desktop computers 　　　g) USB interface available for adaptors 　　2) Model 838C: 　　　a) Style: rectangularly jointed metal stilts and lampshade, available for 360?adjustments 　　　b) Power: AC 220V (50Hz), DC 5V (700 - 900mA) 　　　c) 20cm CCFL tube: long usage life for around 10,000 hours 　　　d) Suitable for desktop computers 　　　e) USB interface available for adaptors