What is a Reed Switch?


A reed switch is an electrical switch operated by an applied magnetic field. It consists of a pair of contacts on ferrous metal reeds in a hermetically sealed glass envelope.

What is a Reed Sensor

A reed sensor is a reed switch with a wire welded to each end and then encapsulated inside a plastic cylinder. Lightdream’s reed sensors’ contacts are normally open and closed when a magnet is present. As the magnet is pulled away the reed sensor the contacts open.
reed switch encapsulated


What is a Controller?

A controller acts like a hub in the lighting system. It receives signals from the reed sensors, and acts on those signals by turning on or off the output.

LD2015 and LD2000 controllers

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Can a Reed Sensor be used without a controller?

Firstly the Reed Sensor contacts open when a magnet is removed from their presence. This would have the effect of turning off the lights as the door was opened.
Secondly the contacts are not designed for the current that the LED strips require and the lifespan would be quite short as the contacts would soon fuse in a closed position.

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What is the difference between the DC and AC Controllers?

The AC controller will switch mains power and has a built-in timer that will switch off the power automatically after a preset period. The AC controller has two channels and each channel can operate independently from the other. It is like having two controllers in the one unit. The timer settings apply to both channels.

The DC Controller is a single channel controller for DC voltages up to 24V. 12 and 24 VDC are the standard voltages used for LED lighting.