This is one whimsy cool product..No light switch though!… Via Ecotopia and priced at approx. $40.7211 (19.99 British Pound)… Product Description from the website“Made with a traditional Mason jar and high tech energy efficient lighting! Captured inside the jar are a highly efficient solar cell, rechargeable battery and low energy LED lamps. When the jar is placed in sunlight the solar cell creates an electrical current that charges the battery over a few hours. This energy is then used at night to power the three LED lamps inside the jar.
You may have noticed that there is no switch on the sun jar – in fact there are no visible controls at all – there is a clever light sensor inside that automatically activates the lights when it gets dark or lights are turned out!”