The only reference I have found to this lighting plant is from the October 1949 Power Farming magazine. The caption reads:
One of the Electrolite Automatic home lighting plants exhibited by Electrolite Products, of 400 Lonsdale Street, Melbourne. These plants were designed by Boulton & Paul, Ltd., of England, and are now being built in Australia under licence. Present owners of Boulton & Paul lighting plants will be pleased to hear that this company is now in a position to supply spares.
Eric