So I just returned a Flashpoint eVOLV 200 (== Godox AD200) for an exchange because of a myriad of problems - the biggest one being a defective lever that refuses to release the fresnel head so that I couldn't use the bare bulb. Anyhow, while I was testing out the unit, I noticed something else strange. After firing, the bulb in the fresnel head continued to emit low-level light continuously for quite some time - probably more than a minute. Is this normal? I did some search on the web, but I found nothing.