The SL3-LED has been designed to be the most powerful asymmetrical and unidirectional lamp for cove lighting. This 1.8 watt source can be rotated in the socket. You have complete control over how the light is distributed. When you need more light on the back wall, simply turn the lamps towards the back wall; more light on the ceiling, simply turn the lamps to face up; more light on the face of the cove, the SL3-LED rotates easily in the socket. You have 100% control!