LED Tube Basic Introduction

　　LED lamps are mostly alternative products, including , LED fluorescent tube has been widely welcomed by users .

　　1, LED fluorescent tubes classification

　　In accordance with the specifications of the traditional fluorescent tubes , LED fluorescent tube can be divided into T5, T8, T10, currently on the market is the most common T5 and T8 tube , T5 tube diameter is too small because , LED drive power can not be built-in, it is generally T5 tube made ??of drive power to make an external or integrated with stand T5 tubes . T8 Tube LED driver power supply built- in general , so T8 tube can be made split or integration. T10 is relatively rare in practical applications .

　　2, LED fluorescent tube specifications

　　Referring to the traditional fluorescent tube length , LED fluorescent tube can be divided into 0.3 m , 0.6 m , 0.9 m , 1.2 m , 1.5 m , corresponding to the different lengths of the power LED fluorescent tube is not the same . For example 1.2 m standard T8 tube power is roughly 18W, corresponding to 1.2 meters can be traditional fluorescent tube 36W or 40W.

　　3, LED fluorescent tube lamp beads Specifications

　　LED fluorescent tube light source section adopted from the earliest straw hat lamp beads, to 3528,5050 , 3014,2835 to the recent , rapid lamp beads mature technology, under the same power lamp beads light efficiency, heat dissipation using getting better. For example using 3014 LED fluorescent tubes do good quality LED lamp manufacturers measured luminous efficiency up to 80LM / W, particularly good up to 90LM / W more.

　　4, LED fluorescent tube power

　　LED fluorescent tube drive section can be divided into three types , namely, RC Buck , non-isolated constant current driver , Isolated constant current drive type . RC RC buck approach adopted to adjust the driving voltage , for the most inexpensive way, when the external power supply voltage variation , brightness LED fluorescent tubes will also change, and the use of this part of the basic source -driven approach used in series , a lamp beads light does not damage the whole , generally low-priced products will use this inexpensive solution. Non-isolated constant current drive type is currently on the market is relatively common constant current drive mode , but if the LED lamp bead insulation unreliable , then the presence of leakage security risks. Isolated power is currently on the market more secure constant current drive mode , but because of the higher cost of the cost of using the more high-end LED fluorescent tube , and engineering applications.