Bluefire Lighting 6W A19 LED Light Bulb, 5000K/Daylight, 540 lm, 40 W Replacement Value Pack, 8 Piece Brighter than ever with the latest high-brightness LEDs technology, 540 lumens light output with efficacy 87 lumens per watt It pays for itself in less than 1 year of usage No buzzing noise (a noticeable difference compared to other brands) Instant on; no warm-up time and mercury-free Traditional Edison bulb shape features a wide beam angle for a broader area of illumination