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Secondary optical design: PPF: 96 umol/s, PPFD: 129.75 μmol/s/㎡ @ 1ft. The secondary scientific light distribution is carried out through the lens to improve the light use rate, give the plants more light, and increase the life of the bulb to 25,000 hours. Full spectrum: meets the more ideal full spectrum additional light throughout the life cycle, covering the entire visible spectrum from 400nm to 780nm; the color rendering index Ra is close to 100, infinitely close to natural light, suitable for any cycle of plant growth, effectively promote plant growth and improve crop yield and quality quality COC patented technology: chip on ceramic, directly soldering the LED chip to the ceramic heat sink, effectively reducing the thermal resistance of the system between the LED PN transitions, reducing the thermal resistance and heat dissipation area of the board faster heat transfer and higher product reliability, therefore, the Sansi lamp has a higher luminous efficiency. Safe and reliable: the lamp body is made of special ceramic materials, and the flame retardant grade reaches V0; the design of the reinforced insulation structure, no risk of electric shock, is safer; the whole shell material reaches the corrosion protection degree WF2. This is more reliable and durable; low IR, less heat radiation, avoid contact burns in the immediate vicinity. FOLDABLE Each lamp head can be folded 90°, with a larger irradiation area to meet the growing needs of more plants. The 30-day unconditional return policy and the 2-year unlimited warranty offer you a satisfactory shopping experience. › See more product details