Now the domestic lighting market led in promoting policies, led fluorescent tube lighting market is extremely strong, and led fluorescent lamp manufacturers built product configuration design of the core components of power led led fluorescent tube manufacturers purchase, if you choose to buy fluorescent lamp power supply is unreliable quality, and then produce the product will be a big problem. In the fluorescent lamp of led products and parts procurement selection, power products are specially emphasized on the purchase of solar lights and power supply reference as follows: A: led the built-in power supply requires buying led constant current drive power. Thus ensuring stable current supply led fluorescent power. 2: Choose tricky built-in led power supply needs to have a good power supply manufacturers led light box with, in power and led lights in the pre-match coordination, so that fluorescent lamp power supply for maximum operating performance. 3: Select the lamp power, the need to design rated 16-18 mA, which is relatively mature fever severe cases to avoid the occurrence of high operating currents. Four: buy light power Note operating voltage design, need to be designed 3.125v compare spectra. Five: led fluorescent lamp power supply design of series and parallel work with a wide voltage led light board, such as: Parallel led light board control, we suggest 6, 8 and 12, the total current of 240 mA control is the best. VI: in the choice of built-in power purchase led and actively coordinated relationship led a series-parallel PFC power factor and wide voltage between the processing and power supply manufacturers led light box, because these factors will determine the actual purchase cost. PFC power supply has three cases: no special PFC circuit, PFC generally about 0.65; a passive PFC circuit, Medallions horse ready PFC is generally about 0.92; also used an active 7527/6561 PFC circuit can achieve 0.99, but cost twice as expensive than the second program. So the second scenario is more. Seven: led internal power supply and power supply manufacturers need to have good precision constant exchange views on issues, 3% can be. Press 3% error, 6-way parallel, each of approximately ± 0.5% of the error, if it is a 12-channel parallel, each about an error of ± 0.25%, and so on. Eight: fluorescent power into isolated and non-isolated power supply, led fluorescent tube according to the actual situation choose good power. Nine: Good led light box power efficiency and power factor reference, power factor, the efficiency of the two indicators sometimes restrict each other, but also for products related to the current output, to improve efficiency, the output is high voltage, low current. Our company's internal control standards is generally 0.82-0.90 power factor, efficiency, 0.80 to 0.90. Our existing customers trade-off between power factor and efficiency, generally tend to increase the power of the main factors, efficiency of 0.80 or more. Ten: Note led fluorescent mix of size and power. Eleven: led fluorescent products in recent years, currently exports more frequently, the international market generally require CE certification, such as Japan's market also needs PSE certification. These factors can be based on planning and communications markets. Based on the above 11 option to purchase reference factors led built-in power, we can determine the factors weighed selected in accordance with the actual use and export destinations for their own production led fluorescent tube or the like. From http://www.ksledstore.com/