Display case with no lights?

I have this display case that I've had for a few years. It has no lights, which doesn't bother me, but is that normal? Obviously I'm not using it to display Oakley's, I hope I'm not breaking any unwritten rule.

GL609 Rectangular Wall Display Case with Divider

Simplie Fun Curio Cabinet Lighted Curio Diapaly Cabinet with Adjustable Shelves and Mirrored Back Panel, Tempered Glass Doors | Mathis Home

7 Best Diecast Display Cases [A Complete Buyer's Guide] - Cases for Collectibles

OP105 Wood Veneer Curved Wall Display Case

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Brand: YokiProduct Series: Jelly Color 360-Degree Transparent Display BoxMaterials: PP + GPPSColor: Multicolor Size(INCH): 14.17” x 6.69” x

Yoki Display Box: All Clear Jelly Color Series (No Light)

Displays2go 60 Glass Display Case, LED Side Lights, Lockable Sliding Door - Black (IAPCT60LED)

Clear Acrylic Display Case Box with LED Light, Collection & Retail Display Stand

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GL608 Rectangular Wall Display Case with Divider

Collectible Display Show Case with LED Lights for 1/18 1/24 Models with White Base by Illumibox

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Aluminum - Fully assembled - No need to worry about assembly, this display case comes fully assembled right out of the box! Easily transport or move

Only Hangers Counter Top Glass Display Showcase with LED Lights -White and Black (White)