Usage Tips:Full 380-800nm Full Spectrum: Compare with the most vegetable bulb in the market, this sun-like full spectrum bulb emits wavelength from 380-800nm, it is the real one full spectrum bulb, sunlightnature most similar to plants at all stages of growth. Improve rapid plant growth: This sun-like growth bulb can promote leaf and rhizome growth, protein synthesis, flowering and fruiting. Best to suggest that youuse 10-12 hours a day for your plants. This grow light will help your plants grow 3-4 times faster than it does under natural light. What's more, this grow light can help you increase the yield Design Scientific heat dissipation design: The bulb shell is made of aircraft aluminum, which is one of the best heat-conductive materials. The fin-shaped heat sink design increases the area ofheat dissipation, which can help you extend the life of the grow light bulb. Design 270 Degree Rotation Design & Larger Lighting Area: A rotatable bulb allows you to easily adjust the angle between the lamp and the indoor plant. The grow light bulb with 120 beam angle can youhelp extend the effective lighting area. Not only a plant light, but also can be used for reading. Specification: Product: 50W LED Grow Light Base type: E27 Input voltage: 85-265V AC Lighting power: Max 50W Material: Aluminum Full Spectrum: 380-780nm LED quantity: 100pcs Luminous flux: 4469lm Power consumption: 22W 5%, replaces 50W HPS Lifetime: 50000 hours. Package included: 2 x LED grow light bulb E27 1x User Manual Note: 1.Indoor use only, not waterproof. 2. Recommended distance: 6 to 10 inches. 3. In general, this light should be on for 10-12 hours every day.