21700 tube for the D4SV2 - comparisons

LED Flashlights – General Info 21700 Flashlights
1

Didn’t know whether to put this one in the 21700 Flashlight category, or the 26650 Flashlight category :slight_smile:

I just got a D4SV2 21700 tube sent with an order of a few D3AAs and I thought you might be interested in some comparison photos.

The new 21700 tube is the same width and slightly longer in comparison with the original tube. IMO, this is a better approach than a thin 21700 tube, due to the proportions of the chunky D4SV2 head, but I think opinions are split on this.

Comparison of the D4SV2 with the original 26650 tube (l) and with the new 21700 tube (r):

20241126_185529_1000
20241126_185529_10001000×750 272 KB

Comparison of a DM11 with 21700 tube (l) with the D4SV2 with the 21700 tube (r):

20241126_192245_1000
20241126_192245_10001000×750 234 KB

Comparison of the D4SV2 with the new 21700 tube (l) and a Fireflies E07x Canon (r):

20241126_190342_1000
20241126_190342_10001000×750 208 KB

AFAIK, the E07x Canon is more or less the same size as the new Fireflies E04 Surge, whcih will be a direct competitor to the D4SV2.

4 Thanks
2

Not bad, but I kinda want an adaptor tube in the 26800 format for that extra length :grin:

2 Thanks
3

Here are some pics of the spacer inside the tube. A Reddit user requested them, probably worth posting here too:

Inside
Inside1920×641 102 KB

3 Thanks
4

Can’t remember where i got this tube but it’s quite awesome. No spacer needed. One of my top five lights.

IMG_9073
IMG_90731764×3817 399 KB

1 Thank
5

oh yea i have those. I meant a tube that size that was designed to hold a 21700. The point would be to use a 21700 while maintaining the form factor of the 26800. I love the 26800 but idk if i’ll find any more after mine are used up

1 Thank