Q: Where are the photovoltaic cables used? A: Photovoltaic cables are used to connectsolar cell modules and invefters. Q: how to choose the type and specification of photovoltaic cable? A: Select UL4730 Standard PV WIRE for the UL standard area; Select PV CABLE(or TUV 2PFG 1169) from standard EN50618 for the EN standard area, the product models are PV Wire**AWG/h1z2z1-k**mm2(or pv1-f) Q: What is the difference between hlz2z2-k and pv1-f? A: Hlz2z2-k rated voltage is higher than pv1-f, the former is 1500 V, the latter is 1000v. Q: Which size of cables should l choose? A: 4mm2(12AWG)Can be usedNo matter how many SOLAR panels are in series and the single string output current does not exceed 15A. after the convergence of several branches of the main output, depending on the situation, can consult us. Q: how long is the service life of photovoltaic cable? A: without additional protection, it can be used for more than 20 years in outdoor ventilation and dry condtions. Q:What other features do photovoltaic cables have? A: Conditions of use -40C~+90C, low smoke, halogen free, flame retardant, anti ultraviolet radiation. Q: how to order? A: after confirmling product name,model, specification, quantity and packing method with our business manager,we will send PI to you,Pay NINGBO PNTECH NEW ENERGY CO.LTD through the bank.We will deliver the goods on the agreedtime.