E27 12V 9W: The working voltage is 12V-85V, which cannot be directly installed in a standard 100V-240V household lighting system. Light up the outdoor garden controlled by photovoltaic panels. Energy Saving: 12 volt E27 cool white 6500K LED bulb, with 9*2835 SMD LEDs, 750 lumens, beam angle is 270 degrees, 9W LED replaces E27 75W halogen bulb, reduce energy consumption by more than 85%. Ideal lighting for mountain huts. E27 24V LED: E27 base, size 60*115mm, easy to install. The aluminum material helps the bulb dissipate heat quickly. Instant lighting. The average life is 30,000 hours. E27 24V LED bulbs for garage. Safety and eco-friendly: This 24 volt E27 bulb is not dimmable, not compatible with dimmers. No lead or mercury. No noise or flicker. 12 volt E27 LED bulb is ideal for motorhome/caravan. Application: This E27 12V LED bulb is suitable for solar panels, photovoltaic panels, and can be powered by 12V/24V batteries. Ideal for lighting caravan/camper van, boat cabin, beacon (gate), garage, shed campaigns, etc.