Full Spectrum Design The PPFD spectrum values of different wavelengths are different and the effects on plants are different. We use a large number of 620-660 lamp beads required by plants to ensure that our lamps are really promoting plants. LM281B Led Diodes LM281B leds have higher light intensity Less light decay , better lumens Better PAR values than ordinary lamp beads. Dimmable Function The intensity of the light can be adjusted from 0 to 10, so as to adapt to the different light brightness required by different plant growth stages Waterproof Function The light panel is covered by environmentally safe glue,the driver is UL listed waterproof power supply, making the whole light can reach IP65 waterproof rate.