Features: 1. Low Power Consumption: Using sophisticated production technology, the metal halide lamp has a long service life and low power consumption. 2. High Output Luminous Flux: The metal halide lamp has high output luminous flux, excellent performance, and can be used for a long time. 3. Function: Can stimulate the growth of plants, suitable for fast growing plants, greatly accelerate the growth of flowers and fruits. 4. Operation: Wait 3 to 5 minutes to get full brightness, wait at least 5 minutes after turning off the power, and then restart. 5. Scope of Application: Made of high quality glass and aluminum alloy, suitable for tying branches of grapes, tomatoes, etc. Specification: Item Type: Metal Halide Lamp Material: Glass, Aluminum Alloy Product Power: 400W Product Voltage: 110V to 240V Lamp Holder Specifications: E39 Service Life: 20000h Color Temperature: 4200k Color Rendering Index: 65Ra Scope of Application: Tying Branches of Grapes, Tomatoes, Etc. Weight: Approx. 260g / 9.2oz Package List: 1 x Metal Halide Lamp Features Long-lasting and Energy-efficient: Utilizes advanced production technology for a prolonged service life and minimal power consumption, reducing energy costs while providing consistent lighting. High Luminous Flux Output: Delivers a powerful and enduring luminous flux, ensuring exceptional performance and sustained use, making it an ideal lighting solution for extended periods. Plant Growth Stimulation: Stimulates plant growth, particularly beneficial for fast-growing plants, promoting accelerated flower and fruit development, enhancing overall plant vitality. Quick and Efficient Operation: Attains full brightness within 3 to 5 minutes of operation, and after power-off, requires a minimum 5-minute wait before restarting, ensuring reliable and efficient functionality. Versatile Application: Constructed from high-quality glass and aluminum alloy, suitable for securing the growth of grape and tomato branches, offering a versatile lighting solution for various plant cultivation needs.