The holder is attached with a socket, stand-adapter, umbrella screw hole with a screw for tightening, built-in on/ off power switch, and a 10' power cable with a wall plug. Can be used at the top of studio light stands with a 3/8 inch or 51 8 inch stud. Its fixing screw can keep the umbrella sitting firmly. On-off switch .
|Adorama AC Socket with Light Stand Adapter & Umbrella Holder 2 PK||$11.98|
|Adorama Flash Umbrella Holder - Attaches to Light Stand||$14.00|