New battery charger series (C series) is complete now! -- HT-C-90-12;HT-C-45-24    2019/10
New modified sine wave inverter 120W is ready -- HT-M-120       ---------------------     2017/03
New battery charger series (C series) is complete now!       ---------------------------     2016/08
New modified sine wave inverter generation (M series) is complete now!       -------     2016/06
New modified sine wave inverter 1500W~3000W are ready.       -----------------------     2015/09
New modified sine wave inverter 600W is ready -- HT-M-600.        --------------------     2014/07
New High frequency design.       -------------------------------------------------------------     2014/05
New multistage battery charger       ---------------------------------------------------------     2012/07
New 1800W ~ 3000W sine wave inverter      ---------------------------------------------     2012/06
New 150W ( sine wave inverter)      -------------------------------------------------------     2010/12
New C Series      ------------------------------------------------------------------------------     2009/03
Inverter with charger models are ready now.      ------------------------------------------     2008/09
Upgraded E series (150w~2000w)     ---------------------------------------------------     2007/01
The third item of Battery charger    -------------------------------------------------------     2006/07
The second item of Battery charger      --------------------------------------------------     2006/04
The first item of Battery charger     ---------------------------------------------------------     2006/04