Coidak CO814 34W E26 LED Grow Light Bulb, Grow Plant Light for Hydroponics Greenhouse Organic Indoor Plants More efficient: made with 1pcs 20*3w COB LEDs, built-in constant current supply, lamp emits the wavelength of light which can be fully absorbed by the plants photosynthesis, promoting plant growth effectively. Wide application: SPC technology to make sure super good performance on plants growth. In the winter or indoors, it replace natural light completely, helping plants growth. Perfect for all stage, clone, growing and flowering. Available for greenhouse, indoor cultivation, pipeline cultivation, potted plants, etc. Safe to use: lamp body materials are aluminum profile, good heat dissipation performance to keep lamps in a good run. Low-power, high conversion rate, emitting a soft light, do not burn seedlings. Evironmentally friendly, with no harmful substance. More choice: including red light:630nm*12pcs leds; blue light: 440nm*2pcs leds; 460nm*2pcs leds; green light: 530nm*1pcs led; orange light:610nm*1pcs led; white light:4500K*2pcs leds. Red leds are good for blooming and blue are good for budding and growing. What You Get: Coidak CO814 34W LED Grow Light Bulb, user guide, 2 years warranty and friendly customer service.