What Models of Lights Have You Seen?

[UnionPacific4Life]

12 inch:
Safetran, all 3 styles
WCH Gen 2, 3
MI
Harmon, old and new

8-inch:
WRRS, unlit
US&S/Wabco

[freebrickproductions]

12 inch:
Harmon, old and new

There's at least three styles of 12 inch Harmon lights. Which two have you seen?

[UnionPacific4Life]

12 inch:
Harmon, old and new

There's at least three styles of 12 inch Harmon lights. Which two have you seen?

side logo and late style

[Steven429]

oh god,
8 inch
Safetran
GRS
GRS Lex-C
WCH
WRRS (Not sure if they're cast iron or not)
Harmon

12 Inch
US&S
WCH
Safetran

Not so sure about LEDs but I know I have seen these
RSI
WCH 2nd Gen
WCH Clear
US&S

[freebrickproductions]

WRRS (Not sure if they're cast iron or not)

Aluminum WRRS 8 inch lights look similar to Harmon and WCH 8 inch lights, while cast iron ones are more rounded and have a ring around the lens.

[PlyingKibbles89]

The models I've seen are:

8-Inch:
-Safetran
-WRRS*
-RACO*
-Griswold Type A
-Harmon

12-Inch:
-WCH 1st Gen
-WCH 2nd Gen
-WCH 3rd Gen
-Federal Signal
-Harmon
-Modern Industries
-Safetran
-US&S
-RSI
-L&W

8-Inch LEDs:
None

12-Inch LEDs:
-Safetran Fading
-Dialight Ball
-Dialight Low Wattage
-General Signals
-WCH 1st Gen
-WCH 2nd Gen
-GE Uniform Look
-Harmon Fading
-Electrotech
-Electrotech Fading
-WCH Clear
-GE Dotted
-RSI

Incandescent Gate Lights:
-RECO
-NEG
-NEG 7-inch*

LED Gate Lights:
-RECO
-NEG RECO-Style
-Alstom
-WCH 7-inch
-NEG
-General Signals*

Misc:
-WRRS Wigwag
-Magnetic Flagman Upper-quadrant
-RRS Wigwag

[Gametrain54321]

8 inch:
US&S
Safetran
RACO
GRS XC
GRS Lex-C
WCH
WRRS
WRRS Cast-iron
Federal Signal
WABCO
Harmon
Modern Industries
Transport Products Corp.
Griswold Type-B

12 inch:
WCH (All Gens)
Federal Signal
Harmon
Modern Industries
Safetran
Safetran 70s model
Safetran Hawker Siddeley
RACO
RSI
RRSC
General Signals
L&W
WABCO/US&S
US&S
Progress Rail (Both styles)

14 inch:
Transport Products Corp.
US&S

8 inch LEDs:
None, IIRC. :(

12 inch LEDs:
WCH 1st Gen
WCH 2nd Gen
WCH Clear
Leotek EV Series
Leotek IL Series
General Signals
General Signals MAX(?)
RSI
Harmon Dotted
Harmon Fading
GE Dotted
GE Uniform Look
US&S
Dialight Ball/433 Low Wattage
Safetran
Safetran Fading
Electrotech/UP

Incandescent Gate lights:
RECO
Safetran
WCH
NEG
WRRS Lantern
WABCO
General Signals
L&W

LED Gate lights:
RECO
Alstom/Aurora
Progress Rail
NEG
NEG RECO-style

Misc.:
(W)RRS Autoflag Wig-wag
Magnetic Flagman Signal Co. Wig-wag
US&S STOP Lights
L.S. Brach MFG Autoflag(?)

[Doge_Illinois]

12x20 & 12x24":
Safetran
WCH
Harmon
MI
L&W
maybe FS

8":
None :(