Product Description

 Production Specification:

• Using two groups of symmetrical charge system, it‘s more stabile charging voltage and faster recycles time.
• Flexible and convenience to use choose charging with one or two group freely.
• Stand-by power consumption is more save and recycle power compare with similar product.
• The flashgun power pack has built-in thermal protection switch, when the frequent use lead to thermal. Protection of power pack, it stops working. However, the battery pack will continue work after cooling

Mark:you can use only 4 pcs or 8 pcs batteries while charging the speedlite, do  remember that you should put batteries in your speedlite either.