Lighting heads dont get much more portable than this 424 watt seconds of wallop when used in conjunction with the elb400 weighing in at 280g and fitting in the palm of your hand this pro variant is for general duties and portraiture fully compatible with prior quadra components and power packs as well as the latest elb400 system the quadra pro head offers the power flexibility and creative potential of studio lighting and makes it mobile the quadra head is equipped with a 50w equivelan