SunStone 150w/m² underfloor heating mat - covers 3.5 sqr mtr, output = 525W The Sunstone Underfloor Heating Mat is designed for use under stone and ceramic tiles. The heating cable is fixed to a tough fibreglass mesh with an adhesive back which securely binds the mat to the subfloor. It is the ideal solution for regular shaped rooms. The mesh (but not the wire), can be cut to fit the shape of the room. The heating cable is a durable single strand, dual core heating cable with a 3 m coldtail. The mat is available in 150 W/m² and 200 W/m² mats. Both will provide even heat distribution and with the 200 W/m² mat being ideal for rooms with high heat loss such as conservatories Features: 3 mm single strand, dual core and double insulated heating element. Sticky fibreglass mesh for extra durability and secure installation. Quick installation - Simply roll out mat with pre-spaced wire. CE and UKCA marked meeting the highest safety standards. 10 Year Warranty. Tech Specs: OPERATING VOLTAGE: 230 V AC : 50 Hz OUTPUT RATING: 150 W/m² and 200 W/m² WIDTH: 500 mm (0.5 m) CABLE THICKNESS: 3 mm HEATING CORES: Single-strand, dual core EARTH PROTECTION: Copper earth wire with aluminium screen INNER INSULATION: ETFE OUTER INSULATION: PVC IP RATING: IPX7 MIN. INSTALLATION TEMPERATURE: - 10 °C CONNECTION: 3 m “coldtail” connection