{"product_id":"100-blackout-66in-x-78in-top-down-bottom-up-cordless-cellular-shades","title":"100% Blackout 66in x 78in Top Down Bottom Up Cordless Cellular Shades","description":"\u003cp\u003eIn this review the BERISSA 66in x 78in cordless cellular shades are evaluated for bedroom and living area use where full blackout and easy, rental-safe installation matter most. The single biggest reason to buy is simple: these shades combine true 100% blackout performance with a dual-mode top down bottom up design and a no-drill installation that preserves window frames. The reviewer's experience showed strong light blocking, clear thermal benefit, and a straightforward self-install process that required only the included wrench and a few minutes per shade.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Mode Operation:\u003c\/strong\u003e Top down bottom up tracks allow sunlight in from the top while keeping the lower area private, or full lower closure for complete darkness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Drill Installation:\u003c\/strong\u003e Lateral tension brackets mechanically anchor to frames for a drill-free fit that is removable and rental-safe without surface damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% Blackout Fabric:\u003c\/strong\u003e The honeycomb core blocks light fully when lowered, making the shade effective for bedrooms and media rooms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Saving Honeycomb:\u003c\/strong\u003e Cellular construction traps air to provide insulating benefits that help cut heating and cooling energy usage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCordless Child-Safe Design:\u003c\/strong\u003e Smooth hand-pull operation eliminates dangling cords and gives a clean, modern appearance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick Self-Install:\u003c\/strong\u003e Brackets and hardware are designed for a fast setup that customers report as easy and repeatable across multiple windows.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis shade is best for renters, homeowners, or anyone looking to convert bedroom or media windows to full blackout without drilling into frames. The cordless, tension-mounted system makes it especially appealing for those in apartments or rental homes who need a removable, no-residue solution.\u003c\/p\u003e\u003cp\u003ePeople who need custom shapes, motorized control, or very unusual window sizes should look elsewhere, since this product is designed for standard rectangular windows and manual cordless operation rather than power automation.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExcellent \u003cstrong\u003elight blocking\u003c\/strong\u003e with true blackout fabric for better sleep and dark media rooms.\u003c\/li\u003e\n\u003cli\u003eEffortless \u003cstrong\u003eno drill\u003c\/strong\u003e installation that customers consistently find quick and damage-free.\u003c\/li\u003e\n\u003cli\u003eNoticeable \u003cstrong\u003ethermal\u003c\/strong\u003e benefit from the honeycomb construction, helping reduce heating and cooling needs.\u003c\/li\u003e\n\u003cli\u003eClean cordless look and smooth operation suitable for families and children.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLimited to manual cordless control, so it lacks motorized convenience some users may prefer.\u003c\/li\u003e\n\u003cli\u003eBest for common rectangular windows; unusual frames or deep sills may need alternate mounting solutions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBERISSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e66in W x 78in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight Control\u003c\/td\u003e\n\u003ctd\u003e100% Blackout\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperation\u003c\/td\u003e\n\u003ctd\u003eTop down bottom up cordless\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eNo drill lateral tension brackets, removable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell Type\u003c\/td\u003e\n\u003ctd\u003eHoneycomb cellular insulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe BERISSA 66in x 78in cordless cellular shade is a practical, high-value choice for bedrooms and living spaces that need dependable blackout, improved insulation, and a renter-friendly install. It delivers the main benefits customers praise - ease of setup, excellent fit, and strong light blocking - while remaining an affordable manual option for most standard windows.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill these shades leave marks when removed?\u003c\/strong\u003e\u003cbr\u003eThey use lateral tension brackets and hand-tightened nuts for a removable fit, so when removed properly they are designed to leave no residue or damage.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo they reduce heat loss or cooling gain?\u003c\/strong\u003e\u003cbr\u003eThe honeycomb cellular design traps air and provides insulating benefits that help reduce heating and cooling energy use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs any drilling or tools required?\u003c\/strong\u003e\u003cbr\u003eNo drilling is required; installation is done with the included brackets and wrench for a quick no-drill setup.\u003c\/p\u003e","brand":"BERISSA","offers":[{"title":"Default Title","offer_id":48188634235099,"sku":"B0CS6N71RT","price":235.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/617ik89xHHL._AC_SL1500_efdfba06-3ce3-4089-849f-7e1831383d55.jpg?v=1769443305","url":"https:\/\/gearmusthave.com\/products\/100-blackout-66in-x-78in-top-down-bottom-up-cordless-cellular-shades","provider":"GearMustHave","version":"1.0","type":"link"}