LED Tubes are lighting products that became commercially available in the last two years. As any new technology, they are in process of evolving and improving. Not all LED Tube Lights on the market are of good quality. Here we will briefly describe them so you can make a better choice when buying them.
LED Tubes are designed to replace the widely used fluorescent tubes T8 and T12 sizes. As such, they have similar sizes and end caps with 2 pins. Starting from there, the caps can be metal or plastic. We prefer the plastic ones because they are safer from risk of electric shock.
The LED Tubes contain Light-Emitting Diodes soldered on a PCB, driver that can be external or internal, and metal heat sink to cool the LEDs.
The LED chips can be SMD (Surface Mounted Diodes) or DIP (Dual In-line Package). Although both kinds do the same job at the end, the DIP models tend to be less expensive and slightly less bright. Manufacturers of SMD type tubes claim better heat management and therefore longer life. Our observations find no significant difference as long as heat removing paste is properly applied between the PCB and the metal radiator.
The weakest point in the LED Tube Lights, by our opinion, is the driver. The driver regulates the voltage and current and is a very important part in the Solid State Light Engine called LED Tube. Most of the time a burned driver means discarding of the whole apparatus, especially if it is internal.
The color temperature may vary anywhere from 2,700K to 7,000K. Most used is the Daylight White 5,500-6,000 (Cool White) color, which looks like the fluorescent light. Available are models in Soft White 2,800 to 3,000K (Warm White) and around 4,000K (Neutral White).
Most widespread are LED Light Tubes operating on 120 VAC. Models on 12V DC and 277 Volt AC are available too. Sizes vary from 2 to 8 feet, with 4 feet being the most used.
Lotus LED Lights, as a designer and distributor of LED Lighting products, chooses the best parts and technology available. Our 2′ and 4′ LED Tubes are UL classified and covered by two years warranty.