How many clips?
Use the following calculation to work out how many clips or hooks you’ll need to hang your lights:
O For lights with lightweight bulbs, such as string fairy lights, divide the length of the cable (from the first bulb to the last bulb) by 50cm. For example, for a 12 metre (m) cable you’d need 24 clips (1,200 divided by 50).
O For lights with heavier weight bulbs, such as icicle lights or lights with shades, divide the length of the cable by 30cm. For example, for a 12m cable you’d need 40 clips (1,200 divided by 30).