Upgrade your lighting system with this pack of 1 LED light bulbs from Light Efficient Design. The 10W bulbs feature a 4 pin base and can be retrofitted to fit your existing lighting fixtures. With a lighting technology of LED, you can expect energy-efficient and long-lasting illumination. These bulbs are suitable for use in a variety of settings, from commercial spaces to residential homes. The model number 101419 and connectors are also provided for easy identification. Brighten up your space with these efficient and reliable bulbs.