1. Energysaving and environmentally friendly: The 20W R7S LED 78mm dimmable lamp is a replacement for R7S J78 200W halogen bulbs, reducing energy consumption by over 90%. Featuring thermal conductivity and low maintenance costs, the R7S 78mm LED COB bulb extends service life. Its doubleended COB LED lighting delivers brightness with low power consumption. 2. R7S LED 78mm dimmable bulb: These bulbs offer stronger dimming performance and stability, with smooth dimming from 10% to 100%—no flickering or buzzing. Compatible with most dimmers, they allow adjustable light intensity for different scenarios, reducing eye strain and protecting vision. 3. Comfortable 3000K warm white light: The R7S LED 78mm dimmable bulb emits a soft, pleasant warm white glow (3000K). Adjustable brightness helps create a cozy atmosphere while providing eyefriendly illumination. 4. R7S LED 20W bulbs: This dimmable light 20W R7S LED bulb delivers 2000 lumens, featuring a doubleended COB LED design with 3000K warm white light and a 360degree diffusion angle for even light distribution. The ceramic material ensures light transmission.