I have the model for the manual dial, and it works well. The red light is bright enough, yet soft enough to light up the dial with no glare. As others have said, the magnet really could be stronger. On my Centurion 18, the light over the pointer on the dial will cast a shadow over the hashmark, making it easy to "dial in". The instructions for replacing the battery are on the product card in the plastic packaging. They are inside the fold.
I purchased the Liberty Safe light for an old Browning safe with a dial lock. It does what it says it will do. Yes, its pretty much cheap plastic but it does the job. I knock it down two stars for the following reasons. 1. No instructions: It took me a little while to figure out how to open it to install the battery. Not hard to do when you know what your doing but I found it a little puzzling without instructions. 2. The battery included with the light was dead. Not to Liberty Safe, Include simple instructions and a useable battery.
The light does just what it is made to do - provide a low intensity beam down to see your keypad/tumbler, come off, and be used to find contents inside under cover of night. My safe is black so the red works just fine - green might be cool also. Cheap plastic - possibly but mine has functioned perfectly. Before I purchased one I was a bit leery when I read the reviews about the "weak" magnet strength but the reason the magnet is "weak" is so you can easily remove it from the front to use inside. I have never had it fall off while opening or closing the door..
I agree with John, there needs to options for the light color as the red light is no good on the brass colored lock dial on my liberty Safe. Flashlight works better.
I am reviewing this dial light to report my tests and experience with it.
The light is Chinese made and appears to be of good quality inside and out. Power is one CR2032 3V Lithium non-rechargeable coin cell (included) which you install after sliding the front of the light up and off the rear section. Literature states the red LED is good for not impairing your night vision. That could be important for you at night during an emergency. Touch the button on the front and it stays on for 2 minutes. Two minutes seems very long to me, but hey; it may be important if you are under duress and have to dial your combo several times. The cell is supposed to last about 750 hours. CR2032's are relatively inexpensive and commonly available just about anywhere. I've seen 6-packs for $12.
The magnet appears to be one of those rubber-based pad types and it is quite weak. The light can slide easily on a safe's door if bumped or pushed, and it can be removed VERY easily (almost no "sticking") from the door to use as a flashlight should your safe have no interior lighting.
I tested the light after being in the dark for a while to let my eyes adjust. I was surprised that the light intensity and pattern was more than sufficient enough for "walking around." The light intensity is decent for interior illumination of your safe.
If you do not need to use this as a flashlight, you could mount it to the door with Velcro ---? or double sided tape. I have not decided yet as to doing this; I am waiting to see if I continue to "slide" the light around. By the way, the battery could be easily replaced with the light "stuck" to the door as the rear section would stay on the door and the front section with the battery in it would be easily slid up and off. There is no 'manual release tab' to deal with for opening the case. It has a nice 'snap action' detent to it to keep it tightly closed.
On my Lincoln safe, a portion of the light covers some of the Liberty's decal logo base. If I do use Velcro (or tape), I will only apply it to the portion below the Liberty decal and leave the upper portion of the Velcro or tape with the backing film still on it. That way there would never be adhesive on the safe's decal. (There is more than adequate area below the decal for adhesion.) The upper non-adhesive portion will act as a "backing pad" so the entire back surface of the light would stay tight to the door and not tilt back at all with a button press. (Anyway, the button needs only a slight press for activation.)
The red LED brightness is decent. I found that viewing the dial straight on and down from about a 45 degree angle offers the best viewing for readability and low glare. My dial is gold with black paint numbers and the glare off it with a standard bright white LED flashlight is bad. This red LED light is far a better method.
Considering overall quality, low cost and convenience, I highly recommend and give this light a THREE STAR rating. I would give it a FIVE if it had a strong magnet. (Under duress you could more than easily knock it to the floor in the dark ---- try to find it then!)