NAN DAO E27 LED Grow Lights led plant grow lights grow lights for indoor plants plant lamp Red and Blue 0.06w x 168 LEDs More Efficient: 100% of the power input for our LED grow lights is used for your plant chlorophyll production. The best lighting time (led grow light lighting time plus sunlight lighting time) for plant growing should be 10-14hrs When your plants need more light please lower down the height. The light wouldn't burn plants close to them. Best for your Plants: Red and Blue LED bulbs are suitable for plants heightening and thriving. Wave length: Blue 460-465 nm red 625-630 nm