LEDwholesalers 2506BU Blue 90 x 1 Watt LED High Power Round Grow Light Each light contains 90 x 1 all Blue LEDs Precision blue LEDs. (for vegetation) True optimized spectrum with tight-tolerance LEDs LEDs emit light without using filaments; light runs cool Built-in lugs for easy mounting & hanging Unrivaled chlorophyll/carotenes/xanthophylls absorption