PCB SIZE :13.5CM x 5cmVHF high frequency amplifier board kit, note the parts, not the finished product, and does not provide a copper heat sinkMaximum output power amplifier stage: 170WFrequency range: 80-120Mhz (input 1-1.5W) 140-170Mhz (3-4W)Power DC 24--26v, current 9ACircuit boards, chip components, feeders, power tube, wire, does not provide a radiator, copper is not available, the finished picture is for reference only.Kit parts needs its own debugging, and installation procedures photos, debugging instructions, I have limited time does not provide advice, do not understand those who buy with cautionWarning: Output Disable OPEN SHORT100% Brand NewMaximum Power Per Channel:131-200WModel Number:FM VHFChannels:1Type:Power Amplifier Board AMP KITS For Ham Radiocolor:GreenMaterial:plasticPackage Contents:1 x 80-180MHZ 170w FM VHF high frequency amplifier kit partsOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.