This LED light bulb is dimmable with a regular on/off switch, eliminating the need for a dedicated dimmer. How to control brightness Within 10 seconds of turning the light on, toggle the switch to select brightness levels: One toggle 100W equivalent Two toggles 60W equivalent Three toggles 40W equivalent The bulb always defaults to 100W equivalent when first switched on. Instantly converts fixtures Turns table lamps, bedside lamps, wall sconces, and pendant lights into dimmable lamps for precise ambience. No extra hardware or dimmer switch required. Key attributes Functionality: 3 level brightness control using a standard on/off switch, memory to start at 100W equivalent. Compatibility: suitable for common fixtures including table lamps, bedside lamps, wall and pendant lights. Performance: energy efficient LED with immediate dimming response through simple switch toggling. Size and material: designed to fit standard light fixtures as a bulb replacement (no size or material details added). Use scenarios Living room or lounge: set a warm, relaxing mood for conversations or movie time by selecting the appropriate brightness with quick switch toggles. Bedroom: switch between bright reading light and dimmer ambient lighting for winding down, using 1, 2, or 3 toggles as needed. Dining or entry areas: create a soft glow for meals or gatherings by choosing a lower brightness level without needing a separate dimmer.