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Input:
Question: Would this work with 105 CFL lamps (bulbs)?
Document: I use this with Alzo 45W CFL 5500K bulbs and a white shoot through umbrella. Works well although its made of plastic. I use it as fill light for my natural light portraits in studio.
The lights seem like they are reasonably good quality.I got them for shooting video, and I like the fact that they will fit on my light stands and use my photography accessories. They seem to work best with a shoot-thorough umbrella or umbrella box. If you use a reflecting umbrella, you get a fair amount of direct light from the bulbs, because they are no shaded. I made some shades to block the direct light, but it's not the best system.
Works great. Will probably get a couple more. I use them to power 1000 lumen LED bulbs through a 3X3 scrim, lighting up a whole scene with soft full light. Would not recommend for high wattage use, but since LED lights these days never draw more than 75 Watts, things like this are perfect!
It seems possible to screw in a CFL bulb too tightly, compressing the center spring contact more than necessary, and risking shorting contacts. Don't know if this is a problem with the socket or the bulb. Just don't overdo it, and it's fine. Otherwise, seems to be reasonably sturdy and allows mounting two bulbs with an umbrella for a choice of a different lighting ratio. Separate on-off switches are convenient.
Fits well but tight sockets for the bulbs. I paired it with 2 of these splittersB001ATG0JUand it almost broke them trying to get them in. Finally did though and used CFL daylight 100W equivs and they put out a decent amount of light inside a softbox. I don't use that set up for photography, rather for teaching window light and exposing with a bright background. For that it works well.
The stand arrived and appeared to be made of study material. There is an umbrella support in the center of the device with a screw lockdown nut, although I have found that large 5 foot or heavier umbrella are not well supported when angled upward at  45 degree from level. Electrically the device works well with up to 85watt CFL bulbs (I did not try higher watt bulbs). One can turn one light on/off as needed.
One of the lights did not work at first. After doing some tinkering around with the connector on the inside I finally got it to work. I'm pretty happy with the results as my pictures has really come to life.
A slightly alkward tighening mechanism requires on end bolt to the turned clockwise while the other counterclockwise. It does take a little getting used to when adjusting lamps.
It is a really good product for the price. It is made out of plastic with a few pieces of metal. I use it for my photobooth application and with the right lamps you get enough lighting just with 1 umbrella.
It works perfectly with the lights I ordered. I really love this product and would recommend it to anyone who's looking.
Answer: I purchased some strong bulbs like these and they were so wide around that you could not use the umbrella holder slot, so I returned the bulbs.