Backlighting stone can be a tricky and expensive business. Luckily for most clients who have the budget for a large slab of stone, they also have the budget for lighting equipment – though this is not always true for commercial projects where the lighting budget is much lower than the interior or architectural budget.
For the most part, backlit materials take a fair bit of real estate in an architectural or interior fitout and therefore require a fair bit of lighting to do effectively.
It’s important to consider that LEDs are chips on a printed circuit board. The more chips you have, the more you pay. The most uniform and homogeneous backlit effect will require a regular array of LED chips (or “pixels”); a TV with a high resolution will give you superior image quality and so it is with LEDs.
For the best backlighting effects there is always a trade-off against the depth of the lightbox and the number of LED’s. A deep lightbox will allow for better dispersal of light rays before hitting the stone. A shallow light box will require more LED chips to create a uniform glow. This offset will change according to the thickness of the stone and its level of transparency so you will always need a sample of both the intended lighting product and stone to check.