We just introduced a larger Quad called the Quad XL! It's available as an option on this page.

Which version should you get? 
Let's look at the perimeters of popular TV screen sizes:

A 65" TV is 14 feet around  (screen only, not counting bezel)
A 75" TV is 17 feet around.
An 85" TV is 19.3 feet around. 

Original Quad total length: 13.12 feet (4 meters) and includes 122 LEDs
Quad XL total length: 17.25 feet (5.2 meters) and includes 158 LEDs.

(There are 30 LEDs per meter)

If you don't want/need a bottom strip, consider our incredibly slick MediaLight Flex.  It's a single 4 meter strip -- no complex wiring or splitters and it will easily cover 3 sides up to 85". Or use it however you want, after all it's the Flex.

Anyway, back to the Quad:

You might have noticed that if you looked merely at the total length, the Quad and Quad XL don't extend around the entire perimeter of a 65" and 85" TV, respectively. Good catch. However, when placed approximately 3 inches from the edge of the display, you reach close enough to the edges to for an even surround (halo). 

Still don't know which one to choose? In general, the closer your TV is to the wall, the more you want to run the strips from edge to edge because there's less space for diffusion.

If you are 4-6 inches away, the light will fill in the corners even with the smaller Quad on an 85" TV.

Your ideal Quad size correlates 1:1 to how much OCD you have about wanting the dim surround to be just as bright in the corners of the screen as it is on the sides. 

(It's not necessary to extend to the corners evenly for your MediaLight to be effective, but some people clearly prefer it.  The Quad XL is the result).

To us, reference usually beats preference in the home theatre debate, but we realised that we could provide both, as long as we wouldn't have to compromise on accuracy. Don't get us wrong, we still don't think that it's necessary to light evenly for bias lighting to be effective (in fact Joe Kane has argued that uneven bias lighting has some advantages), but our customers spoke and we listened. This is the result. 

It was very important to us that the Quad and Quad XL be able to run off of the same USB 3.0 (this was the second most-popular feature), so we devised a layout that worked without requiring a 12v adapter (we still include a 5v adapter, or you can use the TV's USB 3.0 port).

The MediaLight Quad and XL:

• ISF Certified - Tested for Color Accuracy
  122 High-Accuracy 5050 SMD chips (LED's) with a 4-way splitter (almost 3x as many lights as our single strip).
• High-accuracy 6500K CCT (Correlated Colour Temperature)
• Colour Rendering Index (CRI) of 95 Ra (all MediaLight bias lights are now 95 Ra, except the MediaLight Pro, which is 99 Ra)
• 5V USB Powered (can be powered by any TV with a USB 3.0 port - or use the included UL-listed AC adapter) -- Please note, the Quad XL includes a bulkier international adapter, which works everywhere except South America.
• Included wire routing clips (to keep things tidy)
• Included Infrared (Universal remote compatible) PWM dimmer
• Peel and stick authentic 3M VHB mounting adhesive
• 5 Year Limited Warranty

Check out what professional colourists are saying.

Our bias lights are custom built with components of the highest quality and accuracy. We may not be able to make all of your dreams come true, but we can at least solve your bias light problems. Your search for an accurate 6500K bias light ends now.