21” Warehouse and Commercial Office Tubular Skylight - Flat or Curb MountAdd Bright Natural Light To Any Workspace Dark warehouses and commercial office buildings are no match for Natural Light Tubular Skylights. Our models will transform any dark, damp warehouse into an inviting, sun filled environment. Tubular Skylights can also replace the flickering, noisy, artificial green light typical of office fluorescent lighting. Natural Light Tubular Skylight harness the suns power while filtering the harmful UV rays to create a