Bolaxin AC/DC 16 Changing 20W Swimming Pool Lights LED for Hayward Light Fixture (12V 20W) It is the 12 voltage pool light, not suitable for the 120V housing , a direct replacement (standard screw-in), 20 Watt pool led bulb with a lifespan of +65,000 hours. It is the perfect pool light for medium sized swimming pools, works for most Pentair Hayward Light Fixture, can flip the power switch on and off over and over in order to change the light color mode. Diameter:6.2" , High:5.3". The pool light bulb is able to lit up 25000 gallon pool, and as a bonus burns up a lot less electricity in the process. 252 Color Changing LEDs: Neutral White, Red, Light Blue, Dark Blue, Green and Purple16 Different Color Settings with Smooth Color Transition, Single Color Fade, Medium Color Changing, and Fast Color Changing. Please note that your purchase is protected by Premium 20 months Service from Manufacturer Antozon. If you have any problem about the light, please dont hesitate to contact our customer service, we will reply within 12 hours.