ceiling coupler to fix on the ceiling

The ceiling coupler is used for adjust the length of the wire and cable, and which is also the ceiling coupler, widely applicable in lighting fixing, just like for the panel lighting. The material is brass, with nickel plating, but we can also make chrome, inox and colorful plating or painting surface treatment, also which can acceptable the wire dia 1-1.5mm, but we can also adjust the dia as per the customer's requirement. The max load is about 90kg, and safety load is about 18kg.. The packing way is 100pcs in a polybag with small label, and 5 polybags in a carton 28x18x14mm.