HL-EL-C is a narrow-beam laser sensing head. It is not a mains switch, and it does not run an LED strip by itself. It needs the 5 V sensor socket on HL-E1-L, or a sensor socket on HL-ES-V. It is not one of the round door or hand-sweep heads. The face is a small puck with a window and a SET button.
The beam reaches from about 5 cm to 2.5 m, and it is about 20 degrees across. Fit it so a person, or a foot, crosses the beam. A corridor wider than the beam needs a head on each side. HL-E1-L takes one head, so each side then has its own HL-E1-L. Two heads on one controller is HL-ES-V.
Delay. Within 60 seconds of power-up, a long press of 2 seconds on SET steps the delay through 2, 5, 10, 30 and 60 seconds. Do not cover the face while pressing SET. Distance is set by itself at power-up. With nothing in the beam, it sets to 2.5 m.
Which delay to use. One head on HL-E1-L: set 30 or 60 seconds. Several heads along a corridor, each with its own HL-E1-L: set 5 or 10 seconds on each head. On HL-ES-V, if a 0 second step is on the head, set 0, so only the controller's 30, 60 or 180 second run-on applies. If 0 seconds is not on the head, use HL-E1-L and set 30 or 60 seconds on the head.
Connection. 5 V DC, from the controller socket only. High is on, at about 3.3 to 4 V. Low is off. The three wires follow + / S / - on the controller socket. The lead is 120 cm. The body is about 32 x 32 x 17.5 mm. Keep the lead away from mains cable. Warranty 5 years.
