Figure 4: Anthocyanin and vitamin C content of lettuce grown under different LED lights Compared with the white control, the content of anthocyanin was significantly different (p<0.05) after G, B, P, Y and R/B=9/1 treatments; G treatment significantly increased anthocyanin content, while, B, P, Y and R/B (9/1) treatments significantly decreased anthocyanin content., and G, Y, P, R/B (4/1) and R/B (9/1) treatments significantly increased VC content (p<0.05).