STACK PACK™ from Lithonia Lighting® is a part of the next-generation family of lay-ins. It’s the high-value, jobsite friendly, project-perfect fixture representing just one of the four performance-tiered solutions that the STACK family brings to the market. The new aesthetic includes a wide, 7-inch curved lens which beautifully distributes the light, beveled end-plates to create a smooth transition from ceiling to light source, and less than 2 inches in total depth which makes it perfect for restricted plenum spaces. Not only does the STACK PACK have Adjustable Lumen Output (ALO), what makes it truly unique is how it ships. We’ve created a modern approach to shipping where four 2x2 fixtures ship in a single box and two 2x4 fixtures ship in a single box, making this fixture our most sustainable and environmentally conscious solution ever.