I have installed several models of Lithonia emergency lights. This is definitely one of the smallest units. The small size offers less light output but is still brighter than comparable incandescent bulbs. If you need more light, choose one of the larger Lithonia models. The only problem is that unlike the larger devices, this model is actually designed to be installed in a junction box. Unlike other devices, there is no option for top or rear cable duct connection. I was able to use a step drill to attach the 1/2" line connector to the back of this unit by enlarging the wire hole provided.