Default: common anode signals. O scale signal. with screw base for easy installation. top may shows Green / middle shows Yellow / down shows Red.
Complete Signal O Scale LED Light Railway Silver W/Screw Block Signals
Practical Complete Signal O Scale LED Light Railway Silver W/Screw 20mA
Complete Signal O Scale LED Light Railway W/Screw 2pcs 3 Aspects Block Signals
Complete Signal O Scale 3 Aspects Block Signals For 12V DC To 16V DC LED Light
Complete Signal O Scale 20mA Block Signals For 12V DC To 16V DC LED Light
Complete Signal O Scale Block Signals For 12V DC To 16V DC LED Light Model Train
