About 6p a night.Here's how to work it out :1 unit of electricity is 1 Kilowatt-hour, or 1000 Watt-hours, and that costs about 12.5p.60 watts x 8 hours = 480 Watt-hours, or 0.480 Kilowatt-hours.0.480 x 12.5p = 6p.If you did that every night for a year, it would cost 6p x 365 = £21.90.
Keith Davidson ● 4614d