- They are bright and nobody will want to look into them, not even if they are softened with an umbrella. Convincing babies/kids between 0 and 8 years of age to look into them anyway "for the perfect pic" is an exercise in futility. BTDT.
- They are not nearly as bright to ISO 400 film as they are to human eyes. What seems way too bright for us, brings F/4 and 1/15s, if that. Bounced against a wall means even less brightness in the target area. Also note that their color is not daylight but close to tungsten, which means I either have to use 64T film (sloooooow) or a KB12 filter which eats two stops.
- They do draw a lot of attention, which means even if I can convince my off spring not to touch them or otherwise tilt them over and smash them, they will be enough of a distraction to completely destroy any candid atmosphere. According to my little angels even a flash is a never ending source of excitement which its lit "test" button that makes "pop" and a flash.
My experience is based on two 500W halogen lights. I could have gotten two more before my circuit breakers say no, but the two I have already convinced me that this is a dead end for me. My current avatar photo was shot with Fuji 64T and these hotlights, and you don't want to see enlargements or projections of this slide