Features: Enhances signal transmission with the 433MHz 8W High Frequency Power Amplifier, to significantly boost communication ranging and stability for remote control applications. Input power: 20~23dBm, and it can work even belows 0.1W. The input voltages is 5-8.4V, which is suitable for the power supply voltages of the battery. The output of 5.8V is 39.2dBm(8.31W)@433MHz, current is 1.560A and the efficiency is 66.5%. The output of this power amplifier is 39.2dBm(8.31W)@433MHz at 8V, current is 1.560A, and the efficiency is 66.5%. It is very suitable for two batteries to supply power, and it can generate such a large amount of power. Specifications: Input power: 20~23dBm(0.1~0.2W), and it can work even belows 0.1W. The output power will increase with the increase of input power and finally reach the power point. Working voltages: 5-8.4V Working current: 1.60A Input impedance: 50ohms Output impedance: 50ohms Input and output terminals: SMA-k female head (external thread and internal hole) Operating frequency: 400-460MHz. Output power (P1dB): 8.32W (39.2dBm)@8V 1.560A The efficiency is 66.6%. 6.76W (38.3dBm)@7V 1.430A Efficiency 67.5% 5.12W (37.1dBm)@6V 1.260A Efficiency 67.7% Package Includes: 1PC 433MHz 8W Power Amplifier Board note: 1. Because of the high output power, do not connect the antennae directly to the output port of the power amplifier! 2. Please use 50ohm coaxialed cable not less than 2m to connect to the antennae, so as to prevent short-ranging strong transmission from interfering with the normal operation of the power amplifier!