Chinatera Practical 680LM Plant LED Photosynthesis Growth Light bulbs Full Spectrum Lamp (MR-16) Comfortable, humanistic and high performance.Suitable for small grow box, grow tent, DIY hydroponics, bonsai, garden, etc. Long lifespan with 50000 hours working life.450nm Blue can accelerate the growth of plant stems and leaves, promote plant photosynthesis. Energy electricity saving with higher-level efficiency. 660nm Red can promote plant germination, flowering, take root and so on. Full spectrum that is necessary and critical for plants growing and flowering.