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.

GL105 Wood Veneer Rectangular Wall Display Case

Display case with no lights?

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

NONEMEY Clear Acrylic Display Case Stand with LED Light 2/3/4/5/6 Tier Storage Box Showcase Dustproof Organizer Box for Collectibles (6 Tiers 19.6 *

Open all 4 sides. No glass on front, back or sides., The TW2 is an open transportable tower display case. Top and bottom cabinet with side frame poles

26W x 73H Open Display Case, Standard Laminate, LED Lights

Finished in black satin on select hardwoods and veneers. Locking front door with beveled glass. Slides in both directions for convenient access to the shelves. Halogen lighting for brighter whiter longer-lasting light to illuminate your collectibles. No-reach roller light switch for interior light is conveniently located on the back of the cabinet. A glass mirrored back enhances the view. Six adjustable glass shelves for seven levels of display with continuous holes for shelf adjustment.

Howard Miller Tyler II Curio Cabinet

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Acrylic Showcase Building Bock Model Display Box Dust Cover for Lego 71741 Garden Movie Building Kit. Acrylic display box size:51 x 36 x 78

Display Box Compatible with Lego 71741 Garden Movie Dustproof Display Case, Model Collectibles Display Case (No Lego Model) (with Pattern + Light)

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Brand new 1/18 scale model of White Collectible Display Show Case Illumicase+ with LED Lights and Mirror Base and Back for 1/64 1/43 1/32 1/24 1/18

White Collectible Display Case Illumicase+ with LED Lights & Mirror Base for 1/64 1/43 1/32 1/24 1/18 Scale Models by Illumibox