E27 12V 9W: The working voltage is 12V-85V, which cannot be installed directly into a standard 100V-240V home lighting system. Illuminate the outdoor garden controlled by solar panels. Energy Saving: 12 Volt E27 LED bulb cool white 6000K, with 9*2835 SMD LEDs, 750 lumens, beam angle is 270 degrees, 9W LED replaces 75W E27 halogen bulb, reducing power consumption by more than 85%. Ideal lighting for mountain cabins. E27 24V LED: E27 base, size 60*115mm, easy to install. The aluminum material helps the lamp dissipate heat quickly. Instant lighting. The average lifespan is 30,000 hours. E27 24V LED bulbs for garages. Safety and Ecology: 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 RV/caravan. Application: This 12V 24V E27 LED bulb is suitable for solar panels, photovoltaic panels and can be powered by 12V/24V batteries. Ideal for lighting caravan/RV, boat cabin, lighthouse (gate), garage, country cottage etc.