Note: The item is with US plug adapterONLY for 110V, NOT for 220V-240V. Please confirm the voltage of your area before placing an order. With the use of the temperature controller, this heatting rod allows accurate thermal control via the easy set thermostat for precise adjustments. It is easy to install and use, and great for both fresh water and marine water aquariums, aquaculture, terrariums and hydroponic systems Feature - Color: As shown. - Material: Glass and ABS. - Size: Approx. 20.5 x 3 x 3 cm / 8.1 x 1.2 x 1.2 inch (L x W x H). - Rated Voltage: 110V - Rated Power: 300W - Safe and reliable in both fresh water and salt water aquariums - It includes two suction cups for mounting. - Automatic shutdown when the temperature is reached. - With the use of the temperature controller, This allows accurate thermal control via the easy set thermostat for precise adjustments.