4 watt led plant grow light, led grow lights, grow lights for plants, best led grow lights, growing plants indoors with artificial light, best grow lights, how to make grow lights for indoor plants, how to use grow lights for indoor plants. It mixed red color and blue color, The radio R&B=8:1 (9:3 available too), The light output: the blue 460nm light, Red light 660nm light. This plant grow bulb with 120 degree beam.
The scientist find that the blue 400~520nm light, Red light 610~720nm, Orange 613~620nm are best rays for plant photosynthesis. LED grow lamp provides the right rays. Spectrum-tailored grow light is plant specific and more efficient than incandescent. The Plant LED grow lamp uses LEDs to generate the specific colors of light that plants use most efficiently for vigorous growth and health. Increase florescence time much more. For example, For the flower in vase indoor, The florescence increased to 20 days is not impossible. Especially useful in indoor plant and stove plant. If this bulb as outdoor lamp, The fixture must be water-proof.
Voltage: AC100~130V or AC220V~240V opetation option
Base: E14, E27, MR16, GU10 option