- DC-12V Strip : The maximum length is 5 meters. If the strip exceeds this length , voltage drop may cause uneven brightness , requiring a loop-back at the end. - DO NOT use water-based adhesives like silicone or glue to paste the strip on any surface, as this will case a short circuit in the LED strip. - Choose a SAFETY MARK Power Supply that matches the voltage and wattage required by your LED strip - Install the Strip in the Aluminium Profile