Promaster FBP4500 Flash Power System<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Large capacity lithium battery gives up to 1800 flashes </span></li><li><span class="a-list-item"> Recycle times as fast as second for a full power flash </span></li><li><span class="a-list-item"> Dual output powers two flashes without a reduction in recycling time </span></li><li><span class="a-list-item"> LED battery level and status indicators </span></li><li><span class="a-list-item"> Compatible with ProMaster， Canon， Nikon， Sony and other flashes with external power input* </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41NN8HlBSHL.jpg" noproxy>