Hello, Respect Customer:Thank you for shopping Shipping :1. Every Order Has Logistics Tracking Information !!!2. Every order we will give you Thermal Conductive Paste3. If you didn&;t obtain the goods in the commitment of time will complete refund to the buyers, or Send a new product again !4 Promise that each LED Bead can light up tricks :1. Please use fixed currentdriver to preserve the present stable. Please hold Lamp bead cool,the temperature cannot exceed 60℃(2):6 300-500mA(Copper stent+2 Core)12 should install the driver, the management recent size process: the heating platform, hand soldering, occasions within three seconds14 : Bulb, Ceiling, Lighting, and diversified Lighting Products15 Power LED Instructions:1, Please hear in at the soldering iron grounding, the operation process, please put on static bracelet, Electric soldering iron: soldering iron temperature does not exceed 260 ℃; soldering iron ought to be grounded, welding time of not more than five seconds, The cooling shell is suggested with high-power led bracket with aluminum or copper warmth sink, and the will for LED scaffold in the backside with the flat warmth sink associated with the application of immoderate thermal conductivity of the thermal grease, Please do the cooling paintings of the lamp beads, lamp beads floor temperature can't exceed 60 ℃, otherwise it will influence the lamp beads life,In order to preserve current stability, expand lamp life, please use fixed recent drive.