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submitted 1 month ago* (last edited 1 month ago) by sbeak@sopuli.xyz to c/flashlight@lemmy.world

cross-posted from: https://sopuli.xyz/post/48392158

I can't decide between the SFT-25R and SFT-40 emitters. The price difference between them is negligible, and every online article seems to have differing opinions on which one has more throw, spill, etc.

Also, I am indecisive on the colour temperature. 5000K is daylight coloured apparently, while 6500K is cooler (blue tinted) and 3000K is warmer (yellow tinted, only available for SFT-40). I don't like cooler lights, so I guess I will probably go with 5000K (unless 3000K isn't super warm, then maybe that one?)

I am going with the Conway T6 as it's compatible with regular AA batteries (like my IKEA Laddas), but as I understand, lights with built-in charging functions (e.g. Skilhunt EC150) usually don't work with NiMH batteries, only Li-ion 14500 batteries.* I don't think the Conway T6 has that, but I could be wrong. The T6 also cokes in a really unique purple colour!

*small edit: I meant that the charging bits don't always work for NiMH batteries for most flashlights, the light itself would still work. The wording is a little unclear, sorry about that!

edit 2: I'm purchasing the T6 w/ the SFT-40 3000K emitter! Thanks everyone!

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[-] sbeak@sopuli.xyz 1 points 1 month ago* (last edited 1 month ago)

In this particular case, the SFT40 will have a larger, dimmer hotspot than the SFT25R, and a brighter spill (more lumens, less candela).

Okay, I think that makes sense. So the SFT25R has a more concentrated beam (higher candela) while SFT40 has more lumens but over a larger angle and lower candela. I think I will go with SFT40 then?

If he's white and the leaves are brown, candela is the most useful attribute to maximize; as long as there's enough light on the dog, you'll spot him easily. If your dog is brown, then seeing color detail will matter and more light will not help if the color contrast is insufficient.

Ahh, okay, I think that makes sense! So a high CRI light will make it easier to distinguish contrast between similar colours (e.g. brown on brown).

So should I go with the 3000K light w/ the SFT-40 emitter then? I have normal colour vision and like warmer lights.

[-] Zak@lemmy.world 2 points 1 month ago

3000K does look warm, which some people like and others don't.

How far away do you need to see clearly? The Nichia 519A in 5000K (daytime sunlight) or 4000K (afternoon sunlight) might be a good fit.

[-] sbeak@sopuli.xyz 1 points 1 month ago* (last edited 1 month ago)

Enough to see the path clearly when the environment is dark. I like warm lights, and from your description, it's not super orangey or anything, so I will go with the 3000K! Thanks for all the help!

I can always return the flashlight if I find 3000K to be too warm :D

[-] Zak@lemmy.world 1 points 1 month ago

I'm not sure Convoy takes returns for non-defects. Shipping between China and presumably-not-China for a sub-$20 item just isn't worth it.

Even if they do, Convoy is a small business, not Amazon.

[-] sbeak@sopuli.xyz 1 points 1 month ago

Returns from a local retailer, I'm not buying directly from Convoy.

this post was submitted on 07 Jul 2026
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