Photocells (PECUs)

                                       Royce Thompson - Photocells (PECU's)

Lucy Zodion- Photocells (PECU's)

 

 

 

Royce Thompson photocells for street lighting applications include one part, two part and miniature photo electronic control units.

Photocells (PECUs) are light operated switches - Royce Thompson photocells switch the street lighting supply ON to a load when the light level falls beneath a given value (Dusk) and switch the supply OFF when it rises above another level (Dawn). The ratio between the two light levels is known as the switching ratio.

 

• Royce Thompson - Oasis Series, One Part Photocells (PECU's)

Royce Thompson Oasis photocells meet and exceed all national and international specifications having the unique facility of a self test on initial power up. The photocell output is via a Bi-stable relay with Patented Synchronous Switching. The PECU's fit in to the NEMA standard socket and are also available in 20mm conduit thread fixing with flying leads.

 

• Royce Thompson - Monostar Series, One Part Photocells (PECU's)

Royce Thompson Monostar photocells meet and exceed all national and international specifications having the unique facility of a self test on initial power up. The photocell output is via a Mono-stable relay with Patented Synchronous Switching. The PECU's fit in to the NEMA standard socket and are also available in 20mm conduit thread fixing with flying leads.

 

• Royce Thompson - Tristar Series, One Part Photocells (PECU's)

Royce Thompson Tristar photocells are one part Fully Solid State models with the unique facility of a self test on initial power up - the photocell output is via a high quality Triac with Zero Crossover Switching.

 

• Royce Thompson, ER Series, Two Part Photocells (PECU's)

Royce Thompson ER series 2 part photocells feature the same accuracy, reliability and power consumption as their single part equivalents.

 

• Royce Thompson, Microstar Series, Miniature Photocells (PECU's)

Royce Thompson Microstar miniature photocells feature patented technology including 'state machine' and 'synchronous switching' for a greater accuracy under variable temperature conditions.

 

• Royce Thompson, Nightstar Series, Part Night Photocells

Using advanced functionality Royce Thompson Part Night PECU's can be designed to predict the time of day by measuring the day length. They are then able to turn off at midnight and turn back on at say 5:30am.

The time is determined from cumulative light measurements at dusk and dawn over a number of nights. The timing is not exact and does not compensate for changes in the time due to daylight saving. Use of such systems can dramatically reduce annual burning hours. For the timing to be maintained it is important that the PECU remains continuously powered. If the power is removed it will take the PECU some days to re-synchronise and re-establish the correct timing.

 

Lucy Zodion are global market leaders in the innovation and manufacture of street lighting photocell controls reducing energy consumption and cutting carbon footprint.

Eco-friendly dawn to dusk street lighting control, including part-night (dimming and OFF) photocells - reduced carbon emissions, reduced energy bills.  

Pictured : Lucy Zodion Photocell (PECU) SS3

 

PECUs : Photo Electric Control Units, Photocells - History

Photocells or PECUs are light-operated street lighting and commercial lighting switches that are used to automatically turn lights on when it goes dark and off when it becomes light - dawn to dust photocell street lighting control. PECUs (photocells) are extremely enviro-friendly, highly sensitive to light changes and exceptionally energy efficient, with many photocells using less than 0.25 Watts.

Effective street, highway and motorway lighting plays an important role in keeping streets and roads safe for drivers and pedestrians alike and Zodion Lighting Photcell (PECU) Controls have gained an unrivalled reputation in this specialised field.

Indeed, Lucy Zodion manufactures and supplies an extensive range of high quality electronic photo control units and lamp ballasts for street and amenity lighting.

Lucy Zodion also has the capacity to provide lighting for highway signage applications.

Lucy also offer Heavy Duty Cut Outs & House Service Cut Outs suitable for a range of ratings in both single & triple phase.

Full range of Lucy Zodion Photocell (PECU).

	Lucy Zodion Photocell (PECU) SS12 - Miniature Street Lighting Photocell
	Lucy Zodion Photocell (PECU) SS3 - Street Lighting One Part Solid State
	Lucy Zodion Photocell (PECU) SS4 - Commercial One Part Photocell
	Lucy Zodion Photocell (PECU) SS6 - Street Lighting One Part Solid State
	Lucy Zodion ZEBC Smart Electronic Ballast
	Royce Thompson - One Part Photocell PECU - Monostar 2000i
	Royce Thompson - One Part Photocell PECU - Oasis 1000
	Royce Thompson - One Part Photocell PECU - Oasis 2000
	Royce Thompson - One Part Solid State Photocell PECU - Tristar 600
	Royce Thompson - Two Part Photocell PECU - ER12N
	Royce Thompson - Two Part Photocell PECU - ER4N
	Royce Thompson - Miniature One Part Photocell PECU - Microstar 1000
	Royce Thompson - Miniature One Part Photocell PECU - Microstar 2000
	Royce Thompson - Miniature Photocell PECU - Microstar Ultra HT
	Royce Thompson - Energy Saving Photocell (PECU) -Nightstar
	Royce Thompson - Adjustable Photocell PECU - Residential Lighting V16