Size:50W Quantity:1 Description: Voltage: 220V-240V Frequency: 50HZ-60HZ Power rate: 25W/50W/100W/200W Temperature control range: 20-34 The temperature can be adjusted from 20 degrees to 34 degrees. Easy to install, simple to operate, high temperature resistance, with explosion-proof quartz glass tube, more safe for use Installing with sensitive temperature regulator and over-temperature protection device, and adopting high-resistance heating wire, which generates uniform and stable heating and long service life With good heat resistance and insulation,high heat transmission efficiency, equipped with strong support hooks and parking suction cups,more stable and reliable Double-layer waterproof protection and full submersible design, accurately maintaining the temperature setting. Works in no more than the depth of 120 cm. Only suitable for use in fresh water and sea water See more product details The temperature can be adjusted from 20 degrees to 34 degrees. Easy to install, simple to operate, high temperature resistance, with explosion-proof quartz glass tube, more safe for use Installing with sensitive temperature regulator and over-temperature protection device, and adopting high-resistance heating wire, which generates uniform and stable heating and long service life With good heat resistance and insulation,high heat transmission efficiency, equipped with strong support hooks and parking suction cups,more stable and reliable Double-layer waterproof protection and full submersible design, accurately maintaining the temperature setting. Works in no more than the depth of 120 cm. Only suitable for use in fresh water and sea water