1)ballast is hum small 2)against overvoltage 3)against high temperature ,long life 5)It complied with GB 2313-93,GB/T14044-93

EB contains automatic full-function protection circuit using pulse soft start and modulating  frequency .when open or short circuit occurs ,the self-protection circut will be active automatically 

shutting down the output of the EB.the built-in adaptive control system guarantees EBto work efficiently and reliably with either MH lamp's or HPS lamp's discharge characteristics from different manufacturers ,old and new .this system can automatically and perfectly adapt to different lamp characteristics preventing lamp cathode being impacted from rush current ,thus reaching high luminous efficacy and extending lamp's life.

Discription                   Input current                                                                   PCS/BOX

HPS/MH70W                0.32~0.66A                                                                           1

HPS/MH100W              0.46~0.96A                                                                           1

HPS/MH150W              0.67~1.38A                                                                           1

HPS/MH175W              0.75~1.58A                                                                           1

HPS/MH250W              1.08~2.29A                                                                           1

HPS/MH320W              1.42~3.04A                                                                           1

HPS/MH400W              1.76~3.65A                                                                           1

HPS/MH600W              2.75~5.45A TOTAL LUMINOUS FLUX :80000~93000LM         1

HPS/MH1000W            4.54~9.33A TOTAL LUMINOUS FLUX:126000~145000LM      1

HPS/MH1200W            5.5~12A     TOTAL  LUMINOUS FLUX:>160000(HPS)              1

1.Input Featurer:                                   2.Output featurer:

rated voltage:110v~240v                      harmonic distortion:<10%

Frequency:50/60hz                                crestfactor:<1.50

power factor:>0.99                                frequency:25~100kz

                                                              loss of input watts:<10%

                                                               energy saving

metal halide ballast 400w