LVJING 5PCS 0.5m/strip 10W red + blue light 36pcs 5050SMD Led Growing Light Strip Grow Light Bar DC 12V Aluminum Shell for Indoor Garden Greenhouse Flowering Plant Hydroponics System &iexcl;&shy; Lvjing hard grow light bar, Pack of 5, 0.5M/strip, 10W/strip; Wavelength band range: blue light of 445nm / red light of 660nm; 27red + 9blue light, 36pcs 5050SMD; Attention: power supply or plug is NOT included, any 12V power supply or adapter is suitable. (Please contact us if you have any problems) Add light to plants, stipulate their photosynthesis; help plants absorb nutrients, especially some trace elements; shorten the growth cycle; prevent the rampant growth of plants;