PVC Flex Cable 0.5mm 4 Core

From the shop's description

3 Amp Brown, Blue, Grey & Earth H03VV-F Light Duty Flexible Circular Wire for Indoor uses up to 300V such as Central Heating Pumps, Low Voltage Lighting, Extractor Fans and Controllers requiring Multi-core connections. A quality, well constructed product which is easily stripped and worked with. 0.5mm² copper conductor size, External diameter 6.2mm (Should be used with 6mm or 7mm Round White Clips) 4 Core cable with Brown, Black, Grey & Green/Yellow (Earth) coloured cores as indicators Plain annealed high quality stranded copper conductor with double insulated PVC protector sheath Suitable for extra low (such as CCTV Supply) and low voltages up to a maximum of 300v Suitable for temperatures between -5°C and +60°C