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* Well constructed, with flexible metal tubing and a strong clamp. It folds up into a compact space.
* Sturdy plastic around the LEDs.
* The controls are very intuitive, Well marked and they light up.
* You can select all three primary colors which gives you white, red+blue gives you purple, which is an ideal growing color, and yellow+blue which green. The less the plant reflects a certain color, the more light energy it is receiving.
* The brightness has multiple step levels
* You can also set a timer for three, six and 12 hours.
* You get a fairly beefy 5v, 3A power supply. With all the LEDs turned on to maximum brightness, the power supply always produced 5+ volts and never pulled more than 2.25 A. That's about 11 watts, so this is not going to affect your electrical bill very much, even if you leave it on all the time.
* My favorite feature is the ability to use all 3 heads, 2 or just 1. You do this by pressing the power button which cycles between all three heads on, two on, one on and then off. This is a neat feature I discovered by accident.
* You could be growing three different plants and when you remove a plant, you can just turn that bulb head off.
* As long as you keep the power supply plugged in, the light will remember your color and brightness settings. That's useful if you are using the timer feature.
* I won't know how effective this light is with plant growth for awhile. But other reviews look positive.
