0ur opinion: :infrared light for shooting in total darkness * compatible with most Sony camcorders and cameras equipped with NightShot® infrared capability * recommended shooting range: approximately 10 to 65 feet * powered by either a single Sony lnfoLithium M Series battery or 2 'AA' batteries * adjustable light output * mounts directly to cam's accessory shoe or with the included accessory shoe adapter bracket *
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Testimonials
Average Buyer Rating:

Buyer's feedback: 
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* SOny HVLIRM External IR Light ...
I purchased this IR light to use my camcorder in darkness. It works pretty well. It emits a "spot" type light - similar to a flashlight - and will illuminate objects 20 - 25 feet away using my JVC GZ-MS100 in night mode or with the shutter set to 1/15 sec or slower. Much farther than 25 feet and the illumination falls off sharply. I like the two battery system of the Sony - it uses 2 AA batteries which install internally, and uses an optional external Sony battery pack that clips to ther rear of the unit. I filmed using the Sony IR light for 8 hours continuously and used only 20% of the optional external Sony battery power.
In comparrison, I also purchased a SIMA SL 20IR, and an SL 10IR. The 10IR was useless - it had 9 LEDs arranged in a 3X3 matrix, but only the center LED illuminated. Maybe the unit was deffective; I returned it. In contrast, the 20IR worked well. It has 12 LEDs in a 6X6 matrix, and they all illuminated. It produces a "flood" type pattern of light that also illuminates out to about 20 - 25 feet. In one case, I used both the Sony (as an IR spotlight) and the SIMA (as an IR floodlight) simultaneously and got great results - sort of like having your car's high and low beams on at the same time.
The Sony HVLIRM IR light is a good external light source that gives you a spotlight type IR light source. It is well built and has two battery power options - both of which can be used using the switch on the unit - slide to the "A" position to use the AA batteries, and slide to the "B" position to use the optional external Sony battery pack (that you can purchase separately). The external battery and its optional charger are not cheap, but the battery pack fits other Sony camcorders, and it provides many hours hours of run time (estimated 36+ hours) for the IR unit before it needs a charge.
Buyer's feedback: 
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Amazing Product
This is an amazing IR light. It is so good, that it can light up a room for 2 video cameras to operate. My brother used it with another person's camera set up next to his & both cameras were able to video record in nearly total darkness. If you use the AA batteries to power it, they will drain fairly quickly, but his worked for at least 3 hours of continuous operation. Invest in the better battery (we'll be doing that) or in rechargeable ones. Otherwise, this is the perfect battery to use with a Sony nightshot video camcorder.
Buyer's feedback: 
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* Paranormal Investigator Review of HVLIRM Light ...
I purchased this light to use with my Sony DCR-HC28 MiniDV camcorder. It is attached using the provided accessory shoe bar. It can also be attached to an accessory shoe on any camera because it's universal and not the Sony proprietary hot shoe design. It's mounted or un-mounted quickly.
The light will run on either a Sony Li-Ion battery or AA batteries making this truly versatile. A Li-Ion battery is not included but can be purchased separately at or eBay. What's great about this is you can load 2 AA batteries and the Li-Ion batteries at the same time. Then, when either dies you just flip a switch and begin using the other power source. This is important when your in a place with allot of activity and don't want to loose a minute of usable video.
The illumination is fine for indoor use. It can be adjusted from low to high depending on how reflective the surfaces are at the place being investigated. The light is projected in more of a flashlight style beam. This is different from the SIMA light which projects in a floodlight style.
Overall, this is a great IR light and a critical addition to my equipment lineup.
Buyer's feedback: 
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Sony HVLIRM Battery Light
I use this IR Light for my Sony HDR-CX7. Its great! I think its another one of my great buys. It adds a large amount more IR light than what would normally be provided by the camera itself. Its very noticeable in the camera side viewer and in the recorded video. Video cameras need a lot of light to create "low noise, less grainy" videos. The HVLIRM allows the camera to create clearer, sharper images from the extra amount of light. A definite buy if you want more IR for night shots or shooting in low light situations. An added plus is that it can operate on 2-AA batteries.
The recording distance (conservatively) for using this IR light and the HDR-CX7 is around 5 to 10 feet for very clear video. At around 15 feet it tapers off to be about the same illumination as it would be with the camera alone at around 5 feet.
Buyer's feedback: 
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* IR Light ...
Excellent light, but if you are looking for a white light i dont recomend this one, this light you could only use it only in night, its perfect on forest if your are looking for an animal in the night.