About these itemsHigh brightness & low energy: Both models offer a good balance between high - lumen output. The GT - DL - PH6 - 13W provides up to 1050 lumens, while the GT - DL - PH4 - 9W offers up to 750 lumens, both helping to reduce energy costs.5 - in - 1 CCT flexibility: Allow users to choose from 5 different color temperatures (2700K, 3000K, 3500K, 4000K, 5000K) by flipping a switch. This enables customization to match different room atmospheres, from warm and cozy to clean and crisp.Easy installation: Can easily replace existing fixtures without the need for extra parts. They are compatible with both E26 bases and TP24 connectors, allowing for quick setup in minutes.Durable construction: Crafted from premium materials and feature advanced heat dissipation technology. This ensures long - term reliability and durability, making them suitable for years of use.Dimmable functionality: Dimmable from 10% to 100%, these lights can adapt to different activities such as movie nights or task - oriented work, creating the right mood according to user needs.Key DifferencesGT - DL - PH6 - 13W: Item Model Number GT - DL - PH6 - 13W, power is 13W, quantity is 12 PCS, luminous flux is 1050 LM.GT - DL - PH4 - 9W: Item Model Number GT - DL - PH4 - 9W, wattage is 9W, quantity is 10 PCS, luminous flux is 750 LM.SpecificationsGT - DL - PH6 - 13W:Item Model Number: GT - DL - PH6 - 13WPower: 13WQuantity: 12 PCSMaterial: PlasticColor Temperature: 5CCT (5000K/4000K/3500K/3000K/2700K)Luminous Flux: 1050 LMColor: WhiteGT - DL - PH4 - 9W:Item Model Number: GT - DL - PH4 - 9WWattage: 9WQuantity: 10 PCSMaterial: PlasticColor Temperature: 5CCT (5000K/4000K/3500K/3000K/2700K)Luminous Flux: 750 LMColor: WhitePackage ContentGT - DL - PH6 - 13W: 12 x LED Recessed LightingGT - DL - PH4 - 9W: 10 x LED Recessed Lighting