GE Lighting 68017 Energy Smart LED 11-Watt (60-watt replacement) 800-Lumen A19 Light Bulb with Medium Base, 1-Pack - Led Household Light Bulbs - Amazon.com
Tesla - LED BULB E27, 11W 3000 K - warm white, 1055lm :: RELAYS.TECH
4x 11W (=60W) CFL Energy Saving Spiral Light Bulb, 2700K, E14, SES Lamp, 600lm | eBay
Vossloh-Schwabe L7/9/11.307 | Electromagnetic Ballast for TC and T Lamps 5/7/9/11W 230V | Rexeluk
Led Bulb, A60 11w E27 Cool White Light 6400k, 880lm (5-units) - Led Bulbs & Tubes - AliExpress