LED T8 tubes range from $6 to $30. It all depends on the quality of LED and other BOM used. Besides the dimension, most consumers have no way to measure what is specified or claim. T8 has 3 main parts: The electronics, the LED component and the housing. GEMWEL tube is designed with 35 deg C at solder point to ensure long life, low THD, high PF, no flicker, no bending and proven in big 24×7 factories. Wrongly installed tubes affect the eye sight. Quality of Light is very important.