Best Full Spectrum LED Grow Light IR UV

What is the LED lenses?Lenses can affect how the light is distributed across the footprint and how well that intensity holds at particular heights.Lenses create a more concentrated footprint.Fixture with no lenses have a more diffused footprint. High-quality light diodes Samsung Osram Seoul... PPE up to 2.9umol/J.The diodes are with lenses. Scientific bead ratio, full-spectrum including 3000K+5000K+660NM+SUNLIKE UV&IR.  Dual-use, extend or retract, freely adjust the light bar spacing to form different PPFD（photosynthetic photon flux density ）, different coverage area and footprint. PVISUNG 5 BARS LED GROW LIGHT/7 BARS LED GROW LIGHT Original creative extend-retract frame, out of the ordinary. Lightweight structure, less 30% weight and 50% packing volume compared to other competitive products on the market. Saving more about 50% space, saving more about 50% transportation cha…