| grow light | 0.47 |
| reflect true color of t… | 0.16 |
| coating near ultraviolet | 0.40 |
| covering a blue led | 0.31 |
| specific wavelength | 0.25 |
| more efficient | 0.40 |
| bright | 0.35 |
| expensive | 0.23 |
| blue led | 0.77 |
| full spectrum light sou… | 0.25 |
| the most cutting-edge l… | 0.16 |
| created | 0.62 |
| used in outdoor lighting | 0.25 |