Default: common anode signals. O scale signal. for 2 x complete signal. top may shows Green / middle shows Yellow / down shows Red. with screw base for easy installation.
Complete Signal O Scale Model Train Railway Silver W/Screw Block Signals
Complete Signal O Scale LED Light Railway Silver W/Screw Block Signals
Complete Signal O Scale 20mA Block Signals For 12V DC To 16V DC LED Light
JTD25 10 sets Target Faces With LEDs for Railway Dwarf signal O Scale 2 Aspects
JTD26 10 sets Target Faces With LEDs for Railway Dwarf Signal O Scale 3 Aspects
JTD24 10 sets Target Faces With LEDs for Railway signal O Scale 3 Aspects