Lightimetunnel LED Grow Light Bulb,Perfect Plant Grow Lights for Greenhouse Hydroponic Aquatic Indoor Plants (E27 12W 2 Blue & 10 Red) Ultra bright, high light efficiency. Constructed with 12 leds ,this led grow light emits sufficient light which can be fully absorbed by the plants, accelerate the growth of plants. 10 red leds and 2 blue leds combines into a good spectrum ratio, provides the actual light that plants take from sun. the blue lights help the plants for photosynthesis for sturdier stem and leaves. And the red lights are to aid the plant for blooming and fruit. Low power consumption. Consumes 80% less power than the MH or HPS system, energy-saving. Great heat dissipation. Metal aluminum and massive heat sink in heat dissipation design, doing excellent to keep the lights cool. the light do not get hot even use for a long period of time. 1 year warranty and 30 days money back. Standard E27 light base , fit in any regular bulb socket, easy to install. Kindly note: For buy one get one free, pls add both to the cart.