KAEZI 85 Watt Studio Light Bulb 5500K CFL Day Light.

I purchased one of the 600 watt light kits that come with 45 watt spiral bulbs, these bulbs are vastly better. Larger size (big honking bulb!) and much stronger output. I tested as follows.Ambient light was living room at night with a couple of table lamps and light in the next room on. The low ambient light better allowed me to see light range and distribution. Important measurements to me since I plan to use these to shoot group photos.Using the 33" black/silver reflective umbrella from the kit at approx. 20 ft. with ambient light requiring 1/30 second shutter speed this bulb allowed for a better evenly lighted picture across approx. 15-18 ft. at 1/60 shutter speed. The 45 watt only had about 12 ft. of reach and at that range was just barely allowing 1/50 second shutter speed.Whatever the small 45 watt bulbs can do these KAEZI 85 watt bulbs will do better.Big light on subject is better than small that is why people use diffusers such as umbrellas. The sheer size of these bulbs makes them a big light source, Brighter light is also better than dimmer so I think these bulbs are good on both these key metrics. I look forward to testing with a 60 inch shoot through white umbrella and 53 inch reflective.The 5500k color temperature of these bulbs is also very close to my flash units which I use on camera or on stands with remote trggers. This will make getting a good white balance easier than a 6500k bulb would. I have used remote triggers and flash before purchasing continuous lights and am glad I will have the option of also using the flash units at the same time as a supplement. Or as backup if a fluorescent bulb fails at a bad time.One thing to watch out for the size of this bulb puts it close to the umbrella shaft, umbrellas bounce a bit when moving the stand. I would advise using care to make sure the shaft does not smack the bulb and possibly break it when moving stands around.So a triple win. Big, Bright, and color temp matches flash units. Only thing left is bulb life and if they fail in the first few months I'll update the review.

The media could not be loaded. Please watch my video review for a closer look...As many other reviewers, I had one of the cowboystudio lighting kits. Unsatisfied with the lighting power of the 45 watt kit light bulbs, I decided to invest in one of these 85 watt bulbs. I was initially undecided about getting this ones or the 105 watt ones. Finally I decided to go with the 85 watt ones considering the good reviews and price. And I'm glad I did.This light bulb provides a much brighter, powerful and clearer white light than the 45 watt option. The light is good enough that I can light up almost my entire basement with a single bulb. I am considering getting another one to use in my garage.Here is my list of pros and cons:Pros:- Strong and powerful light.- Bigger light. Has more reach.- Very pure white.- Good materials.- The box that it comes in is very good and keeps the light bulb safe.Cons:- The light bulb is very big and might be difficult to use with some modifiers such as softboxes.

I just got these today. They are well packed and all look to work right. I purchased them to replace the 45 Watt bulbs in my Reflecting Umbrella photography lights because the 1 x 45 watt is ridiculously low. You have to practically stand directly in front of the light. Just never been bright enough. These are VERY bright and that's great but WARNING. These bulbs are about Double The Physical Size of the 45's and barely fit the stands I have. They screw in properly, but the stem of the umbrella is a fixed distance and the bulb actually touches it. They don't heat up fast and I think it will be OK for my use...short durations. But be aware of the size if you are moving up for wattage. In my photo the original bulb that came with the kit is on the left.

Worked perfectly for my needs. I used them to take quality pictures of stuff, the previous lights weren't bright enough, and these were. They've last quite a while but I sadly had to toss them since I don't need studio lights anymore. I'd recommend them in a heartbeat.

First let me say I'm just getting started in videography and barely know what I'm doing. I will say however that I tested the color temperature of these bulbs with an iPhone app and they fluctuated between 5300 - 5500k. In the 5 videos I've shot so far setting the white balance on my Panasonic Lumix FZ2500 to 5400k and the colors look perfect, set it at 5500, I can't tell the difference but 5400 feels warmer that could be my camera as well.The light meter on the iPhone registered around 3800-4000 lumen at about 1ft from the bulb without being in a reflector. Again these were readings through my iPhone and estimating a foot; not to be taken seriously.So far, after about 5 shoots I'm satisfied. If you need precision I wouldn't go with CFL's at all, they can't do it. Get a digitally controlled adjustable lamp for precision; but if you have a standard socket soft-box as I do and don't care too much about having a collection of several different temp - wattage bulbs; I would put these in the brighter than average and reasonably accurate and CFL's run cool and cool down fast. I was putting the bubble wrap over the bulbs within 5 minutes of turning them off.