Light bulbs - The Variety of Voltages in London c. 1910

A Short History of Electric Light

Direct Current (DC) Suppliers Voltages
Barnes District Council	210
Battersea Borough Council	230
Bermondsey Borough Council	240
Bromley (Kent) Electric Lighting & Power Company	210
Charing Cross, West End and City Electric Supply Company; West End Area	200
	100 & 200
Chelsea Electricity Supply Company	200
Chiswick Electrical Supply Corporation	220
City of London Electric Lighting Company; Northern Area Southern Area	204
	210
Hackney Borough Council	240
Hornsey Borough Council	240
Kensington & Knightsbridge Electric Light Company	200
Leyton District Council	150
Poplar Borough Council	230
Richmond (Surrey) Electric Lighting Company	220
St, James’ & Pall Mall Company	110 & 220
St. Marylebone Borough Council	240
St. Pancras Borough Council	110 & 220
Shoreditch Borough Council	150 & 240
Southwark Borough Council	220
Stepney Borough Council	240
Stoke Newington Borough Council	240
Westminster Electric Supply Company	200

Alternating Current (AC) Suppliers Voltages
Brompton & Kensington Electrical Supply Company	100
County of London Electric Supply Company	205
Ealing Corporation	105 & 210
Fulham Borough Council	200
Hammersmith Borough Council	110 & 220
Hampstead Borough Council	105 & 210
Islington Borough Council	100 & 200
Kensington & Knightsbridge & Notting Hill Companies	200
Kingston Upon Thames Borough Council	105
London Electric Supply Company	100 & 200
South London Electric Supply Company	220
South Metropolitan Electric Lighting and Power Company	200 & 100
Sutton South Metropolitan Electric Tramways Lighting Company	200
Tottenham North Metropolitan Electric Company	240

Suppliers of both AC & DC - Voltages
Metropolitan Electric Supply Company	100 & 200
Willesden (North Metropolitan Electric Company)	240
Woolwich Borough Council; Woolwich and Plumstead Parishes Eltham Parish	210 DC
	220 AC

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