LED Tube Lights

In recent years, we have seen the rise of the LED tube for lighting and after looking at its many benefits, it isn’t too hard to see why. As it utilizes light-emitting diodes, there are many advantages of choosing this option including a low flickering level, little energy consumption, quick to start, high brightness, and environmentally friendly. In addition to this, it also has a very basic structure which makes them more reliable with no starter, no ballast, and no maintenance required. For a location that is open 24/7, the return on investment for this change can be as little as six months and they are generally expected to last for up to five years for working 24 hours a day. LED tube is now widely used for general lighting purposes in hotels, schools, offices, malls, manufacturing plants, and many more.

Just as other LED lights, LED tube is designed as a standard alternative to conventional fluorescent tube. With compatible size and sockets, those old tubes can be retrofitted with LED without throwing the fixtures away, easy and costless. Nowadays, there are various different options when it comes to LED tubes; measured by diameter, you will find the T4, T8, T12, T5, T9, T10. In terms of sockets, there are G11, G13, 2G11, R17D, FA8,etc.; In terms of length, there are 1 feet (30cm), 2 feet (60cm), 3 feet (90cm), 4 feet (120cm), 5 feet (150cm), even as long as 8 feet. 

With the T5 and T8 models, these are extended versions of a typical tube and they will come without a normal fixture of fluorescent dose. Since LED emits light in one direction, there’s no light need to be reflected from backside of the tube, therefore the shade is abandoned. With the driver hidden inside the body, the two square ends simply click into place as the fixtures are integrated. Taking just seconds to replace, more new buildings are choosing to go for the integrated LED tube for convenience and affordability.

In truth, LED tubes and the term ‘flexibility’ go hand in hand because there are endless options including varying wattages, length, connection, color, and even solar energy options as well as UV LED tube, remote control tube, waterproof LED tube, and more.

Structure of T8 LED Tube 

Lamp Holder On both ends, there will be two plastic parts called the ‘lamp holders’ and these will have pins in place. Regardless of the lamp holder, they should all be compatible with the sockets that correspond with the previous fluorescent fixture.


structure of led tube

Driver — A  PCB with different electronic components, it transforms AC current to DC current to provide stable current to LED chips.

Insulating Sleeve — A plastic cover outside of the drive to prevent contact between the metal body and the driver.

LEDs — LED tube is usually of SMD encapsulation and will therefore be slim in size, emit light at a wide angle, and produce little heat. For most tubes, 2835 SMD is the typical choice although there are other options depending on the purpose; for example, 5730, 3014, 2835, 5050, even COB, to meet different purposes.

Aluminum PCB — As a connection between the driver and the LEDs, an aluminum PCB is in place and works with a copper circuit. In terms of quality, this will very much be decided by how thick the copper is and how efficient the thermal conductivity works on the aluminum base.

Diffuse Cover — A semi-circular PC cover will act as the diffuse cover so that symmetrical light emitting surface can be created from light beams from the LEDs.

Lamp Body of LED tube is the heat sink of LED, it is usually made of aluminum alloy profile which can give quick heat dissipation. Over time, LED tubes are becoming more efficient because chips are becoming more advanced as well as more heat resistant. Furthermore, many manufacturers are trying with plastic instead of aluminum.