richbuff
Flashlight Enthusiast
If two different lights have similar lumen and throw specs, does that mean that the beam profiles (beam width and length, hotspot size) will be similar?
If I have a collection of lights, and I have the specs, and then if a new light is released with throw and lumen specs that are similar to another light already in my collection, can I figure that the beam profiles of both lights will be just as similar as the specs are?
For example, MX25L4CvnT - XPL PDT + DriverVNX2, 5000 lumens and 861 meters throw. I know firsthand what the beam profile looks like.
I do not have the K60vn - XHP70 Dome on, 4814 lumens and 807 meters throw.
Can I figure that the K60vn - XHP70 with dome has a similar beam profile as the light that I already have?
These two lights are very different as far as emitters are concerned, of course. One XHP70 in a single, large reflector, versus four smaller emitters for four XPL emitters. But the lumen and throw specs are similar. Excluding tint, by how much can the beam profiles differ? If lumens and throw are very close to each other, can the hotspot of one be much broader or narrower than the other?
Same questions, another example: TN40vn Spec 4 XHP35 HI + DriverVNX2, TN36UTvn handle and carrier. 8700 lumens, 1414 meters throw; versus
RC40vnT - XML2 PDT + DriverVNX2, 7142 lumens with 1382 meters throw.
Can I assume that the TN40 and the RC40 will have very similar beam profiles, with the first slightly outperforming the other as far as beam profile is concerned?
Excluding tint, what can I not visualize in advance about the beam profile, if I have lumen and throw specs?
Thanks in advance for replies, and sorry about the flood; this is, after all, a flashlight forum.
If I have a collection of lights, and I have the specs, and then if a new light is released with throw and lumen specs that are similar to another light already in my collection, can I figure that the beam profiles of both lights will be just as similar as the specs are?
For example, MX25L4CvnT - XPL PDT + DriverVNX2, 5000 lumens and 861 meters throw. I know firsthand what the beam profile looks like.
I do not have the K60vn - XHP70 Dome on, 4814 lumens and 807 meters throw.
Can I figure that the K60vn - XHP70 with dome has a similar beam profile as the light that I already have?
These two lights are very different as far as emitters are concerned, of course. One XHP70 in a single, large reflector, versus four smaller emitters for four XPL emitters. But the lumen and throw specs are similar. Excluding tint, by how much can the beam profiles differ? If lumens and throw are very close to each other, can the hotspot of one be much broader or narrower than the other?
Same questions, another example: TN40vn Spec 4 XHP35 HI + DriverVNX2, TN36UTvn handle and carrier. 8700 lumens, 1414 meters throw; versus
RC40vnT - XML2 PDT + DriverVNX2, 7142 lumens with 1382 meters throw.
Can I assume that the TN40 and the RC40 will have very similar beam profiles, with the first slightly outperforming the other as far as beam profile is concerned?
Excluding tint, what can I not visualize in advance about the beam profile, if I have lumen and throw specs?
Thanks in advance for replies, and sorry about the flood; this is, after all, a flashlight forum.