High-quality chips,DC-DC converter,high conversion efficiency,Good stability,quiescent current is small,while also serving to effectively suppress harmonic current noise.Using a wide range,suitable for most 7.2V-8.4V and 9V camera. The power of the mobile phone PD charger must be between 18W -65W, The camera can start normally. Only support 18W 30W 45W 60W 65W PD Wall charger/PD mobile power supply/PD Car charger to power the camera, please do not use other devices, otherwise the camera will be damaged. This device is only used to power the camera, Do not connect other devices at the same time, Otherwise, it will cause insufficient power supply. EP-5A USB-C Cable Dummy Battery Kit for Nikon Coolpix D3100, D3200, D3300, D3400, D3500, D5000, D5100, D5200, D5500, DF, P7000, P7100, P7700, P7800 DSLR Camera After connecting to the correct PD and QC3.0/4.0 power adapter or power bank, the red indicator light will always be on when the power is on. Certain models of cameras may consume higher current, so please use a high-performance power supply.