1.DC drive cable can not only play the role of power adapter,while also serving to effectively suppress harmonic current noise.2.High-quality chips,DC-DC converter,high conversion efficiency.3.Good stability,can output high current,quiescent current is small.4.DC drive cable connected power bank supply for digital cameras, power bank capacity: 8000-30000mAh,equal to the new battery in the camera's power many times;When you turn on the flash to take pictures or video,to provide uninterrupted power supply.5.Using a wide range,suitable for all 7.2V-8.4V digital camera and video camera, Support part 9 v digital products6.Magnetic ring anti-jamming design,enhance the stability of the camera work.7.Provide adequate power for the camera, is Wedding with the film, outdoor photography, video filming, travel and other best tool.8. Compatible with:LP-E8 LC-E8 LC-E8C LC-E8E Battery and for 550D 600D 650D 700D Kiss X4 Kiss X5 Rebel T2i T3i T4i T5iNote:1.In order to make your camera work better,Please use a high-quality mobile power, power bank is output guarantee of at least 2A current.2. Do not use the computer USB supply for the camera,because most computer USB 2.0 output voltage is 5V,But the current is less than 500mA.3.Recommended to use High-quality power bank; the power bank capacity is large, usage time is longer.Colour:blackMaterial:Plastic + MetalSize:Length: about 1 meterPackage Contents:1 x Dummy BatteryOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.