Neewer 2 Units Photo Studio Light Adapter Mount E27 Single Bulb Holder Lamb AC Socket with Umbrella Swivel Bracket Designed to work with all E27 screw light, accommodate light bulbs or slave flash, built in umbrella holder and light stand mount,easy mount to light stand and easily adjustable for different shooting angles. Designed to work with all E27 screw light, accommodate light bulbs or slave flash, built in umbrella holder and light stand mount,easy mount to light stand and easily adjustable for different shooting angles. Can be Mounted on any standard photo studio light stands. Can be Added a umbrella reflector. lamp holder, lamp socket