Estar LED tube lights feature higher reliability, easier retrofit, higher efficacy, high color rendering index, lower power consumption, maintenance free operation – lasts much longer than conventional fluorescent lighting. We use high-quality SMD LED light source, constant current drivers, aluminum heat sinks, and lampshades – materials that allow our lights an efficacy that far exceeds other brands in the marketplace. Our LED tubes use 60% less energy and have a lifespan of over three to four times longer than an equivalent fluorescent lamp. Instant on, no flickering, no buzz. They are perfect for applications with frequent “on/off” switching cycles, without impacting their lifespan ─ unlike the traditional incandescent and fluorescent lights.