Photocells
Charles Endirect
Fisher Pierce
Haromarkt/Incatron North
Horstmann
Hy-Lite Controls
Longjoin
Royce Thompson Electrical
SELC / Westire
Sirebeck
Lucy Zodion (Fisher Karpark/Cableform)
Unknowns
Specials
SC 1000
The SC 1000 photocell saw use in Derby from the commencement of the Street Lighting PFI in 2007, until September 2010, when the cell choice changed to the SC 1000/SAV units.