Luminous Flux: 450lm. : Dusk to dawn sensor light bulb with GU10 lamp base, AC 85-265V, warm white 2700K, 180 degree beam angle. Troubleshooting?. : The bulb may occasionally light up automatically, this may be because the switch has just been turned on or an obstacle blocks the sunlight, causing the light to be too dim and the bulb to turn on.
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