Product Description Helps accelerate the growth of indoor plants Emits the wavelength of light which can be fully absorbed by the plants photosynthesis, best for blooming and promoting the leaf. Easy to set up and use Standard PAR38 shape with E26 base. No special lamp needed, a desk lamp will do. Low heat Designed with the finned heat-sink, it does not generate any noticeable heat even 17hrs a day, so it won't hurt your plant. Led Ratio: Red(660nm 3pcs; 630nm 6pcs), Blue(460nm 3pcs). Red light stimulate flowering and seed production. Blue light stimulate stem and leaf growth. Maintenance Free No bulb replacement with energy efficient LEDs. Eco-Friendly No lead or mercury. No UV or IR Radiation. Solid State Shockproof and vibration proof. Package Includes: 1 x 12W PAR38 LED Grow Light Note: The best distance between the lamp and the plant is 0.5 m - 1 m, and when there is no sunlight, the best lighting time is 8-16 hours, which depends on the specific plant. The product is suitable for 1-2 square meters area, such as balconies, greenhouses, darkroom and so on.