Self-illumination

Self-illumination on the Cheater's Lament.

Self-illumination is a feature of the Source Engine that causes certain textures to appear to glow when in areas with little light. This effect is used to add to the appearance of certain items in Team Fortress 2.

Objects that glow in the dark

Class	Type	Object	Location of glow
Scout	Weapons	Sun-on-a-Stick	The orange segments.
		Festive Bat	The lights.
		Festive Scattergun	The lights.
	Hats	Cross-Comm Express	The monocle
	Misc	Sign of the Wolf's School	The glowing eyes.
Soldier	Weapons	Festive Rocket Launcher	The lights.
Soldier	Hats	Cross-Comm Crash Helmet	The laser and monocle
Pyro	Weapons	Sharpened Volcano Fragment	The orange segments.
		Third Degree	The heated coil.
		Festive Flamethrower	The lights.
	Hats	Blazing Bull	The horns.
		Waxy Wayfinder	The flame and candle.
		Triclops	The eyes.
	Misc	Tail From the Crypt	The tail.
	Misc	Fallen Angel	The wings.
Demoman	Weapons	Festive Stickybomb Launcher	The lights.
Demoman	Misc	Scottish Snarl	The eyes and teeth.
Heavy	Weapons	Festive Minigun	The lights.
Engineer	Weapons	Festive Wrench	The lights.
	Hats	Mining Light	The lightbulb.
		Industrial Festivizer	The festive lights.
		Clockwerk's Helm	The eyes.
	Misc	Pip-Boy	The screen and buttons.
Medic	Weapons	Quick-Fix	The backpack.
	Weapons	Festive Medi Gun	The lights.
	Misc	Dr. Gogglestache	The goggles.
	Misc	Emerald Jarate	The neon liquid.
Sniper	Weapons	Festive Sniper Rifle	The lights.
Sniper	Misc	Doublecross-Comm	The monocle
Spy	Weapons	Festive Knife	The lights.
Spy	Misc	Doublecross-Comm	The monocle
All classes	Hats	A Rather Festive Tree	The lights and the star.
		Cheater's Lament	The halo.
		Horseless Headless Horsemann's Head	The inside areas. Set to fade in and out.
		Aperture Labs Hard Hat	The lightbulb with a team-colored lens.
	Misc	Deus Specs	The lenses.
		Bombinomicon	The eyes and gums.
		Spirit Of Giving	The screen.