Full Spectrum Grow Light: It emits all the wavelengths from 380nm to 800nm- just like natural sunlight and isn't an eye sore. With the warm white high efficiency LED diodes and higher PAR output, the grow light greatly promotes indoor growth as it accelerates photosynthesis, ideal for all stages of growth and various of plants such as herbs, orchids, succulent, tomatoes etc. (50,000 hours lifetime.) Automatic Smart Timer: The lamp operates from a built-in timer with 3 modes cycle timing function which stay on for 3/9/12 hours. Easy to Use & Height Adjustable: Just stick it in potted plant itself,does not require to clip/clamp it onto a surface,The pole does telescope up and down as well which is handy it can grow the plant to stay at a reasonable height,also it will cover a pretty large space to shine light on more plants in close proximity when it is fully extended. Size:Length:19-71 cm/7.48-27.95 in