Common LED package use elements. First, LED pin forming method 1. It is necessary to 2 mm from the gel to bend the bracket. 2. Bracket forming must be done with a clamp or by a professional. 3. Bracket forming must be completed before welding. 4. Bracket forming must ensure that the pins and spacing are consistent with the board. Second, pay attention to LED bending feet and cutting feet Because the design requires bending and cutting the foot, when bending and cutting the LED, the position of the bending foot and the cutting foot is more than 3 mm from the bottom surface of the gel. The bent feet should be made before welding. When using the LED plug-in lamp, the pitch of the pcb board hole corresponds to the LED pin pitch. When cutting the foot, the static vibration of the cutting machine generates a high voltage static electricity, so the machine should be grounded reliably and do anti-static work (the ion fan can be blown to eliminate static electricity). Third, LED cleaning Special care must be taken when cleaning the gel with chemicals, as some chemicals damage the surface of the gel and cause fading such as trichloroethylene, acetone, and the like. It can be wiped and immersed in ethanol for less than 3 minutes at room temperature. Fourth, LED overcurrent protection Overcurrent protection can be used to provide LED series protection resistors to stabilize the operation. The resistance value is calculated as: R=(VCC-VF)/IF VCC is the power supply | voltage regulator voltage, VF is the LED driving voltage, IF is the forward current Five, LED welding conditions 1. Soldering iron soldering: The soldering iron (up to 30W) tip temperature does not exceed 300 ° C, the soldering time does not exceed 3 seconds, and the soldering position is at least 2 mm from the colloid. 2. Wave soldering: The maximum temperature of dip soldering is 260 ° C, the dip soldering time is less than 5 seconds, and the dip soldering position is at least 2 mm from the colloid. Led Post Top Lights are also ETL DLC Listed.30W 50W 75W 100 Watt IP65 Post Top is a Bollard Retrofit LED Circular Street Light 5000K 130 lumen per watt(100-300W HID/HPS/MH/CFL Replacement) Daylight 120 Degree Distribution Area Lighting for Subway Backyard, Lamp Post Top Saves 80% more energy compared with traditional lighting fixtures.These beautiful Led Post Top Fixtures are ideal for new installations.Our new product LED Post Top Lights make your garden to be unique.It is Wet Locations, Dust and Bug Proof, IP65 Rated for 50,000 hours and 5 Year Warranty. LED Post Top Lights Led Post Top Lights,Lamp Post Top,Led Post Top Fixtures,Solar Lamp Post Top Shenzhen Bbier Lighting Co., Ltd , https://www.chinabbier.com