The LS-290C v2 is a low voltage photocell used with a LightSaver LCD-203 or LCO-203 daylighting controller. The LS-290C v2 photocell senses light levels and signals this data to the controller. The LS-290C v2 is powered by the controller. Photocell Placement The photocell is designed for mounting in a dry location that views daylight. The photocell should not directly view illumination from an electric light source. Figure 1 shows the LS-290C v2 field of view. The photocell points toward the window. For skylight applications, the photocell mounts in the lightwell of the skylight and should view the incoming daylight. Typically, the photocell is aimed toward the skylight. The light level range adjustment jumper may