About this item [Full Spectrum] - The SZHLUX grow light 4ft with full spectrum provide the most reasonable grow light wave based on the ratio of absorption for plants, especially red and blue light, is the professional sunlight replacement for indoor plants. [New Design and Super Bright] - Trapezoid-Shape for larger luminous area than T5 and T8 led plant light, over 95% energy can be absorbed by plants. Consuming only 140W with 192 LEDS, replacing 800w general plant lights, work extremely well in seedling, vegetative and flowering cycle. [Easy to Install] - Plug and play, you could link up to 4 lights in a series by included 47 inches connecting cords or small connector. Using clips to mount on ceiling, using cable ties to tie on grow light stand, or using hanging rope to hang the lights, multiple installation methods provide the best way that you need. Note:The driver of our lights do not support use with a dimmer switch. [Excellent Heat Dissipation ] - The light efficiency can be increased by 17~20% with reflector. The shell of our grow light was made of 100% aluminum which provides the high-efficiency heat dissipation. Ensuring the longer lifespan of the led chips. [Quality Assurance] - We provide 2-Year limited warranty and 24-H after sale service, please feel free to contact us by our support email. Note: Our lights only support 4 connected at most. To disconnect the power supply first, connect the lights with the connector, and then turn on the power supply; After connecting the lights together, only one end can be connected to the power cord, and the other end cannot be connected to the power cord. Otherwise, the lights will short-circuit and burn up all the lights.