Unobtrusive White finished energy efficient solution for low level marker lighting for many commercial applications in stairways and along corridors this All LED Marker Light offers a host of benefit. These include long life anti-glare illumination and an ultra-slim profile. This Square marker light features a square frosted glass window lens a 50 degree beam angle and a Warm White colour temperature. Additionally it is dimmable with a dimmable constant current LED driver and measures just 37mm in diameter. Please note this product must be wired in series .