The 10W 12/24V E27 A60 LED Bulb 820lm allows you to upgrade from the typical fat threaded bulbs quickly and easily. They operate at 12/24V making them ideal for installations with solar panels. Their 820 lumens are enough to replace a traditional bulb of up to 70W. This means a saving of more than 85% in electricity consumption. The light it emits is of high quality as evidenced by its colour rendering index of over 80. The 10W 12/24V E27 A60 LED Bulb 820lm that we present in our online LED lighting shop is totally environmentally friendly and complies with RoHS regulations, as it does not contain lead or mercury. * For installation in enclosed luminaires, the recommended maximum ON time is half of the maximum time specified in the general terms and conditions.