Product Description Main material: glass Voltage: 220V-240V Cable length: 0.9m Optional power: 100W / 200W / 25W / 300W Length: 20cm / 23.5cm / 18cm / 30cm Suitable for: 220L / 270L / 195L / 305L aquarium Quantity: 1 piece Package content: Aquarium heating rod * 1 1. 【High-quality electric resistance wire】: even heating, durable and long service life. Double-layer waterproof insulation, can control the water temperature, easy to adjust and read the temperature. Highly resistant heating wire, double waterproof protection, long service life. 2. 【When the water temperature reaches the set temperature】: The power indicator automatically turns off. Equipped with 2 powerful suction cups, reinforce the heating element to prevent it from falling. 3. 【1000-layer LED projector with 320 x 240P resolution】: Supports 1080P. HD images become clearer with a contrast ratio of 1000:1. High resolution, clear and bright images ensure excellent image quality and lifelike images. 4. 【Multiple interfaces including HDMI, USB, TF card slots etc】: And it can be connected to all digital devices. With built-in speaker, no need to connect external speakers, the infrared remote control allows you to enjoy the good life that wireless brings you. 5. 【The lamp has a lifespan of up to 30,000 hours and a lifespan of more than ten years.】