If you think our bulbs are not enough or you want to buy extra bulbs as spare bulbs, then you can buy extra bulbs by yourself. One boxes of 4,$60 USD, 4pcs start to buy NOTE: 1）Bulbs can be purchased with fixtures and are not available for individual purchase, if purchased individually starting at 4 pieces. 2）After purchasing the bulbs, please contact our customer service to tell us which type of light fixture you have, and we will match the bulbs according to your light fixture. Contact Us Email: support@balderlighting.com  Phone: +1(917)-605-7191