Parameter : 1.Rated power：20w Actual power：12W 2.USB:DC5V/2A 3.LED qty: 2835 60PCS 4.Wavelength:2：1 （R:660NM,B:450NM) 5.Timing:（3h/9h/12h） 6.Net weight：435g 7.Gross weight：500g 8.product Size：106*89*515mm 9.Package Size：97*97*295mm 10.QTY per carton：20pcs 11.Carton weight：11.8KG 12.Carton Size：500*405*305mm Features : 1.High power：Double head is 12W, but other suppliers only 8-10W. 2.high brightness：Double head is 60pcs LEDS,other supplier only 36pcs LEDS 3.24H Memory Timing ：3H/9H/12His available,turn on and turn off automatically 4.Adjust Color：red, blue and red&blue three modes for you to choose 5.3 light：Blue for sowing；Red&Blue for growth；Red for bloom and fruit.