Luxonic’s Alterlux LED surface luminaires have a range of outputs. The fitting can integrate with the ceiling because it is only 90mm deep and has a simple design. There are square light fittings in two sizes and a linear option, all with a high transmissive acrylic satin lens. A recessed version is also available to fit in shallow recesses, thanks to the product’s remote driver. Efficacy is up to 109 luminaire lumens per circuit watt.