Not happy with this bulb at all. It's listed as yellow white in colour which implies a warm white bulb as opposed to a cool white bulb. In reality it's an amber bulb. No white involved at all. The bulb is not bright at all. I used it as a replacement for an outside door light on my RV, and they ONLY way you know it is on and working is to look directly at the bulb. It doesn't light up the area at all Not even the side of the RV right beside the light fixture. It is SO bad and so useless for my application that I have requested a refund.