Specification: (Manual) Item Name:5.8G 40CH 25m W 200m W 500m W Switchable VTXWorking Voltage: 5-24 V Channel: 40CHPower: 25m W/ 200m W /500m W Switchable Application: Original Replace VTX for Reptile CLOUD-149 / 149 HD FPV Drone LED Indication:-The red LED indicates the state of working mode or the item when setting the VTX (flashing 1 time means selecting the channels, flashing 2 times means selecting the bands, flashing 3 times means selecting the power levels).-The blue LED indicates the state of Pit mode or the value of item when setting the VTX (e.g. when selecting the channels, 3 times of flashing means channels 3. When selecting the bands, 3 times of flashing means band C. As for the item of power levels, 3 times of flashing means at the power level of 500m W)-The green LED on indicates that the VTX overheat protection is working, the power level will go down. Working Mode Indication:- After powering up, the red & blue LEDs will signal the following three items of VTX in turn channel, band & power level (the flashing times of the red & blue LEDs indicate the item & the value respectively). After that, the LEDs indicate the working modes.-Normal: The red & blue LED are on.-Pit mode: The red LED is on & blue LED is off. Setting Instruction:-Press & hold the C button until the red LED flash 1 time which means the item of channel selecting, then press the button can select the channels (blue LED flashing times corresponds to the channel 1-8).-Press & hold the C button again, the red LE