Default: common anode signals. top may shows Green / middle shows Yellow / down shows Red. O scale signal. with screw base for easy installation.
5 x N scale Signal Model Railroad Train Block Signal LED lights 3 aspects #G160
5 x OO / HO gauge Model train Railway Block led Signal lights 3 aspects #G87
Complete Signal O Scale 3 Aspects Block Signals For 12V DC To 16V DC LED Light
2 x HO / OO scale Cantilever Signal Bridge LED 2 heads 3+3 aspects single Track
O Scale Railway LED Signal Lights with 3 Aspects Set of 2 Silver Color
20mA Complete Signal 3 Aspects For 12V DC To 16V DC LED Light High Quality
