12v DC Trapeze Lighting for Not Much Cash

Hello all here is my first Instructable,  'I hope its of some interest,'  this combines my desire to save cash and the opportunity I have had this year to build our family a house. When building our new house I decided to have all the lighting 12dc from source. to this end in the boiler room I have MPPT Solar controllers charging 12v 100AH old UPS batteries. I bought a boat 12v A/B switch and a 600W switch mode supply from China.  In this way I have a backup plan should my batteries die. All the wiring is as standard UK spec but I used Tri rated cable just to be sure.     I looked at a flying "trapeze " system and to buy it wholesale would be loosely £1100    I have build a comparable lighting system for under £100.  (excludes lamps although they are under £2 on Ebay.)   A good tip is to fix both ends and pull a guide string between then screw in the eyelets following the line.  The slightly tricky bit is soldering on the Croc clips.   other than that its very simple.