"As an electrician, a word of warning!. It's always best practice every time, no matter intention of connected load usage, to completely unwind the cable reel as I have seen the effects of damage to the reel if heavily loaded which is directly associated with the inductive effect and heating up effect. It states clearly on the item about the factors associated with loadings and connected usage."
"Small and compact this is ideal for jobs in domestic premises or for DIY in the home. It saves loads of cable everywhere. Only 4 stars for features as no inbuilt rcd but at this price you can always use a plug in one."