Once installed, switch flipped, light comes on very quickly, no flickering or buzzing, I use a quad configuration with 2 standard 48" mercury bulbs , 32 watts per ballast lamp (NOT LED) Make no mistake, they seem to be good quality at a reasonable price! Durability from Philips! No problems installing, used the same mounting screw as the old one, it was easy to remove and replace all in a row just fine I am currently recommending this to others.
Lamp LED Xiaomi Mi Smart LED Bulb Warm White (XMBGDP01YLK), E27, 8 W, 2700 K
26 Review
Lamp LED Yeelight Smart LED Bulb W3 (YLDP005), E27, A60, 8 W, 6500 K
47 Review
Lamp LED Xiaomi Mi Smart LED Bulb Essential (MJDPL01YL), E27, 9 W, 6500 K
113 Review
Lamp LED Yeelight Smart LED Bulb 1S, YLDP13YL, E27, 8.5 W, 6500 K
43 Review