(Closed, Winners Announced!) Relic's 1000 Post Giveaway! Already???

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relic38's picture
Last seen: 4 years 1 month ago
Joined: 12/28/2012 - 00:39
Posts: 3390
Location: Toronto, Canada
(Closed, Winners Announced!) Relic's 1000 Post Giveaway! Already???

Wow, that sneaky 1000 number.  Last week I was around 750 or so.  Yikes! Surprised

Edit: Closed, winners are 18sixfifty and nofearek9!

Details here

This giveaway asks you to take two guesses on one of my recent mods.


  • You must be a BLF member on or before March 11, 2013.
  • One comment per user please. Subsequent comments will be ignored.
  • Your comment gives you up to three entries.  One for simply posting a comment (for those who get bored reading the techie stuff, take some guesses anyway), and up to two more for correct answers to the questions below.
  • The information provided below is all that will be provided in this thread.  There may be other tidbits in other threads, but I will not answer questions or provide further clarification.
  • Contest closes when I reach 1000 posts; about 5-7 days based on my current posts per day.
  • Most important rule: Have fun!


Mod details:

Product: YinHex YH-X9 5xT6 4x18650 flashlight (basically a SolarStorm or Apex; similar finish, but not built as good)


Stock output: ~850 lm

Stock Driver: 10x7135 at 3.5 Amps, 5 modes, visible PWM

Modded Driver: "NANJG" 36x7135 at 12.6 Amps (and the 1.5A rated switch hasn't melted yet), 3 modes

Power Source: 4x Sanyo UR18650ZT, fully charged to 4.3V; driver runs in regulation during the tests (steady 12.6A).

Other mods:

  • Silver thermal compound between emitter plate and head
  • 16 gauge emitter wires
  • Copper braid on all four battery springs
  • Additional 20 gauge wires to emitters to reduce MCPCB trace resistance
  • AR coated lens to replace the stock uncoated glass lens

Question 1: How many OTF lumens does the modded light generate?

Question 2: The bezel and black rubber reflector plate block a considerable number of lumens.  With these items removed (leaving the reflectors and AR lens), how many OTF lumens does the modded light generate?

Answers within +-10% are considered correct and will give you an additional entry. (Edit: widened margin from 5% to 10% to improve your chances Wink )

Note: My lumen numbers may not be overly accurate, as my integrating 'box' is not very well calibrated.  It has proven itself to be close in a few scenarios so far though.


  • Prize #1: Silver Dollarama P60 host with and XM-L T6 3C (NW) emitter and 4x7135 1.4A NANJG 105C in an SMO P60 drop-in. Uses one unprotected 18650 or 3xAAA.  Measured at 380 lm OTF.  Very floody and great battery life; my kind of EDC.

Prize 1

  • Prize #2: UltraFire SK98 XM-L T6 1x18650 Zoomie, sent straight from Fasttech (cheaper than shipping one from me)



Good luck, and thanks to everyone for making BLF so enjoyable! Smile

Welcome the night.

My Reviews   My Mods    http://budgetlightforum.com/search?

Edited by: relic38 on 03/17/2013 - 00:56
Last seen: 1 hour 48 min ago
Joined: 02/15/2012 - 08:40
Posts: 5666
Location: Far East

1. I’m not a modder, so I’ll make a wild guess….1800 lumens
2. About 1930 lumens

That Ninja Guy
That Ninja Guy's picture
Last seen: 11 months 5 days ago
Joined: 11/17/2012 - 16:39
Posts: 607
Location: America's High Five, USA, Earth

Congrats on your fast approaching milestone. Thanks for the giveaway.
1. 100000 Chinese lumens
2. Chinese lumens are not effected by such silly things


Last seen: 2 years 6 months ago
Joined: 04/29/2011 - 12:43
Posts: 4593

Q1: 2071.875 lumens
Q2: 2437.500 lumens

AlexGT's picture
Last seen: 7 hours 48 min ago
Joined: 06/07/2012 - 17:39
Posts: 4603
Location: Texas

12.6a /5 leds = 2.52a per led, that translates to about 800 lumens, times 5 leds = 4000 lumens minus 25% reflector efficiency = 3000 true out the front lumens

tivo532's picture
Last seen: 7 years 1 month ago
Joined: 02/21/2013 - 12:56
Posts: 597
Location: Bay Area

2250 and 2440 Lumen:

Question1: 2250 lm
Question2: 2440 lm

Cheers! Beer

Spasmod's picture
Last seen: 2 years 3 months ago
Joined: 12/29/2012 - 20:17
Posts: 508
Location: UK West Country

lol Tivo beat me by a cat’s whisker Big Smile

Awesome giveaway Relic. Thank you for your generosity.

Answer 1. 2250 OTF Lumens
Answer 2. 2440 OTF Lumens

nofearek9's picture
Last seen: 1 month 3 weeks ago
Joined: 07/08/2012 - 08:46
Posts: 1350
Location: Cyprus

1.2400 lumens
2.2650 lumens

thanks for the giveaway!

RaceR86's picture
Last seen: 5 years 11 months ago
Joined: 02/22/2012 - 08:32
Posts: 3777
Location: Norway

Thanks for giveway!


Question 2:

BLF LED database – collaboration spreadsheet and latest news about where to buy LEDs

Bort's picture
Last seen: 7 hours 16 min ago
Joined: 06/01/2012 - 17:15
Posts: 8534
Location: Holding the proverbial flashlight

4050 lumens as mules
Q1:3200 lumens
Q2:3600 lumens

The Journal of Alternative Facts TM

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ryansoh3's picture
Last seen: 1 month 3 weeks ago
Joined: 08/04/2012 - 08:21
Posts: 3893
Location: US

Thanks for the giveaway!

1. 3K lumens.
2. 3.3K lumens.

BLF ≠ B-grade Flashlight Forum


Last seen: 7 months 3 weeks ago
Joined: 04/27/2011 - 06:24
Posts: 825
Location: Hong Kong / Vancouver, Canada

1: 3600 lumens
2: 3800 lumens
3: Just for fun I’m going to guess the zoomie is… a Sipik SK98, copper braid and XML-U3 mod @ 3.2A

lionheart_2281's picture
Last seen: 36 min 25 sec ago
Joined: 10/25/2012 - 18:32
Posts: 3136
Location: Brisbane, Australia

Wow, this is an awesome prize Love

Ummm, not a huge modder, but here goes:

1. 2190 OTF Lumens
2. 2380 OTF Lumens

Last seen: 8 months 2 weeks ago
Joined: 01/01/2013 - 03:50
Posts: 475
Location: Flash-a-holic world

Thanks for the giveaway and an advance congrats for reaching 1000!

1. 2800
2. 3000

Last seen: 2 weeks 4 days ago
Joined: 01/25/2011 - 19:55
Posts: 975
Location: Australia

1. 4100 OTF Lumens
2. 4300 OTF Lumens

MRsDNF's picture
Last seen: 5 months 2 weeks ago
Joined: 12/22/2011 - 21:18
Posts: 13473
Location: A light beam away from the missus in the land of Aus.

1. 256.35 Mickey Mouse lumbermen, I put lumens in and spell check said I spelt it wrong and this was the correct spelling.

2. Now let me think. Bugger, I should not have done that, pass the headache pills please. There were no lumbermen lost as the offending items have been removed.


djozz quotes, "it came with chinese lettering that is chinese to me".

                      "My man mousehole needs one too"

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.


Last seen: 3 years 6 months ago
Joined: 07/10/2012 - 18:53
Posts: 202
Location: El Salvador

1. 2100 Lumens
2. 2500 Lumens :bigsmile:

Pulsar's picture
Last seen: 5 months 6 days ago
Joined: 07/29/2011 - 00:41
Posts: 5848
Location: Maine

1: 2700 with the bezel and plate
2: 3500 without

Tecmo's picture
Last seen: 11 months 1 week ago
Joined: 09/30/2011 - 09:00
Posts: 1470
Location: Indiana

1. 2400
2. 2700

Thanks for the giveaway!

bushwhacked's picture
Last seen: 6 years 6 months ago
Joined: 11/22/2012 - 20:18
Posts: 537
Location: NovaScotia, Canada

Thanks for giveaway


P60dropins.com (just a redirect for now)

_the_'s picture
Last seen: 1 week 47 min ago
Joined: 07/08/2011 - 06:22
Posts: 3647
Location: Finland

Thanks for the giveaway! I'm in!

A: 3100lm & 3500lm



Davx's picture
Last seen: 5 years 11 months ago
Joined: 03/17/2011 - 20:29
Posts: 910
Location: Italy

Great giveaway. I love quiz

My guess are:
1. 2529lm
2. 2992lm


"There are always new jobs, women, and apartments......there is only ONE BLF." - Chicago X (27/03/2012)

Orion's picture
Last seen: 7 years 9 months ago
Joined: 11/18/2012 - 18:05
Posts: 896
Location: Where women growl & men chunder.

1. 3000 lms
2. 3500 lms

“It is a far, far better thing that I do, than I have ever done; it is a far, far better rest that I go to than I have ever known.” – Sydney Carton in ‘A Tale of Two Cities’ by Charles Dickens (1812-1870).

Last seen: 10 hours 13 min ago
Joined: 02/21/2012 - 19:43
Posts: 258
Location: Kernersville, NC

1. 2550
2. 2725

Thanks for the giveaway!

jmpaul320's picture
Last seen: 1 month 2 weeks ago
Joined: 05/22/2012 - 09:06
Posts: 4189
Location: CT

1. 3123 lm
2. 3327 lm


Would you mind keeping the wrong flashlight?
Best wish, May
Tmart service team


Soumil wrote:



Sirius9's picture
Last seen: 5 days 6 hours ago
Joined: 03/04/2012 - 19:23
Posts: 4652
Location: South Europe

4180 lumens of theoretical maximum, so I would say:

Q1: 3009

Q2: 3553

Tongue Out


Flacomuchacho's picture
Last seen: 8 years 9 months ago
Joined: 04/09/2012 - 17:23
Posts: 331
Location: Alemania

Q1: I’d say around 2745 grams of shiny light. It might be a couple punds of light for non-metrical system users. And slightly more for animals with a wider light spectrum, like, let’s say, my ex.
Q2: Unless Scaru says otherwise, i’d go for 300 units more.

Last seen: 1 year 6 months ago
Joined: 01/25/2013 - 08:02
Posts: 535
Location: Europe

1.3300 lumens
2.3700 lumens

thanks for the giveaway!

Last seen: 5 years 12 months ago
Joined: 09/05/2012 - 20:36
Posts: 1561
Location: District of Corruption

1. 3000 lumens
2. 3400 lumens

I like copper

Suncoaster's picture
Last seen: 6 days 5 hours ago
Joined: 02/22/2012 - 07:14
Posts: 2192
Location: Where the girls are green and the grass is pretty.

1. 3200
2. 3800

"In the land of the blond the one eyed man is king."

*This message is protected with ROT26 encryption.Old Lumens

janko.hrasko's picture
Last seen: 11 months 1 week ago
Joined: 06/12/2011 - 12:51
Posts: 623
Location: Kosice, Slovakia

1. 3100
2. 3500
that’s my guess Smile