Product Description Main material: glass Voltage: 220V-240V Cable length: 0.9 m Optional power: 100W / 200W / 25W / 300W Length: 20 cm / 23.5 cm / 18 cm / 30 cm Suitable for: 220 L / 270 L / 195 L / 305 L aquarium Quantity: 1 pc 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 is automatically turned off. Equipped with 2 powerful suction cups, reinforces the heating rod to prevent it from falling. 3. 【LED projector with 1000 layers and a resolution of 320 x 240P】: supports 1080P. HD images become clearer with a contrast ratio of 1000:1. High-resolution, clear and bright images ensure excellent viewing quality and lifelike images. 4. 【Multiple interfaces including HDMI, USB, TF card slots, etc.】: And it can be connected to any digital device. With built-in speaker, you don't 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.】