Robus has manufactured this compact style 10W emergency circular LED bulkhead for those who require a light unit with a smaller profile. This product is 284mm x 87mm in size and is an equivalent to a 28W 2D fluorescent lamp. It has a built in 3 hour emergency battery so is perfect for public spaces that require emergency lighting. When in emergency mode the light output is a steady 180 lumens allowing people to get to safety.