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Pro Lighting offers various versions of the TCP R40 compact fluorescent floodlight for energy-efficient lighting in fixtures calling for a bulb with a medium screw base and a diameter up to 4.8 inches. The TCP R40 is available in 16-watt up to 23-watt versions and in various color temperatures. TCP R40 CFLs are also available with TruDim technology that allows them to work on circuits fitted with a dimmer to provide linear control of light levels across the power range. The exact sizes of the R40 bulbs vary across the different versions, so be sure to check the specifications listed under the individual product descriptions for exact details. If you need help choosing the right lighting product for your application, send your questions using our contact form, call us or use our Live Chat feature.