4*Luminus SST20 LED / stepless dimming / 4000LM / cool white / 1*26800/1*26650/1*21700 / lanyard / IPX7 waterproof
Head diameter: 42mm
Tube diameter: 33mm
Tail diameter: 34mm
Spring: Copper alloy silver-plated spring with ultra-low internal resistance
4*Luminus SST20 LED / stepless dimming / 4000LM / cool white / 1*26800/1*26650/1*21700 / lanyard / IPX7 waterproof
Head diameter: 42mm
Tube diameter: 33mm
Tail diameter: 34mm
Spring: Copper alloy silver-plated spring with ultra-low internal resistance
4*Luminus SST40 LED / stepless dimming / 7000LM / cool white / 1*26800/1*26650/1*21700 / lanyard / IPX7 waterproof
Head diameter: 42mm
Tube diameter: 33mm
Tail diameter: 34mm
Spring: Copper alloy silver-plated spring with ultra-low internal resistance
In Stock! Manker T02 LED Flashlight
1*Cree XHP35 LED / 6-mode / 1500LM / IPX8 waterproof / 2*14500/2*AA / power display / overdischarge protection
Beam range: 144m/211m (AA/14500)
Voltage: 1.5-3.4V/5.4-8.8V
Current: 1A
Ordered a HK4S, SST-40, brown - good price!
Is that a candidate for a QB26800 cell retrofit?
No, it just fits with the provided extra short spring 
I'm planning to swap in XHP50.2 3V's since I already have an SST-40 version.
I see the spring is not mentioned in the listing but should be there.
Wait... I think I forgot I had to do a mod - swap a driver side high brass button for a low one... I'm loosening it, COVID/hospital in between...
Yeah, here: https://budgetlightforum.com/t/-/64188/49
Thanks Tom E. I just caught up with your posts in the HK4S group buy thread. Nice work!
JETBeam RRT-M1X White Laser LED Flashlight | UP TO 31% OFF
Use coupon code MAP, get up to 31% off
1*WP-T2 LED / 5-mode / 480LM / pure white / 1*18650/1*21700 / lanyard / IPX8 waterproof (2m underwater)
Reflector diameter: 53mm
Head diameter: 61mm
Tube diameter: 28.3mm
Tail diameter: 28.3mm
Voltage: 3.7-4.2V
IMALENT R60C LED Flashlight | UP TO 28% OFF
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6*Luminus SST-70 Gen2 / 6-mode / 18000LM / pure white / 3*21700 / USB rechargeable / IPX8 waterproof (2m underwater)
Reflector diameter: 66mm
Head diameter: 74mm
Tube diameter: 51mm
4*Luminus SST40 LED / stepless dimming / 7000LM / neutral white / 1*26800/1*26650/1*21700 / lanyard / IPX7 waterproof
Head diameter: 42mm
Tube diameter: 33mm
Tail diameter: 34mm
Spring: Copper alloy silver-plated spring with ultra-low internal resistance
1*Cree XHP35 LED / 6-mode / 1500LM / neutral white / IPX8 waterproof / 2*14500/2*AA / power display / overdischarge protection
Beam range: 144m/211m (AA/14500)
Voltage: 1.5-3.4V/5.4-8.8V
Current: 1A
Fenix HP16R Outdoor LED Headlamp
1*Luminus SST40+1*Cree XP-G3 S4+1*Everlight 2835 / 9-mode / 1700LM / white/neutral white/red light / 1*battery pack/4*AA
1700 lumens maximum output (1300 lumens spotlight + 400 lumens floodlight).
Compatible with 4 AA Ni-MH/Alkaline batteries (charging is prohibited).
Separately controlled dual switch for easy and fast operation.
Lockout function avoids accidental activation.
USB Type-C charging port with 2A fast charging, 3 hours for full charging.
60 degree tilt mechanism directs the beam where needed.
Made of quality plastics and aluminum, integrated die-casting for better heat dissipation and safety performance.
2m impact resistance
PIONEMAN U8A Tactical LED Flashlight
1*Luminus SST70 / 12-group/55-mode / 4000LM / pure white / 1*21700 / lanyard / IPX4 waterproof / intelligent temperature control
Voltage: 3.7-4.2V
Head diameter: 55mm
Intelligent temperature control: When the temperature of the flashlight reaches 55’C, the temperature control system will continuously automatically adjust the output current, and return to normal output when it is lower than 55’C
15 layers of heat dissipation, fully protect the internal circuit
12-group/55-mode:
The flashlight enters the flashing state, flash 1 time, then turn off the flashlight, select the first group; flash 2 times, turn off the flashlight, select the second group; flash 3 times, turn off the flashlight, select the third group; and so on.
Optional gear group: (where biking is a beacon, battery check is a battery capacity test, each flash represents 25%)
0.1% / 1% / 10% / 35% / 100% / strobe / biking / battery-check
0.1% / 1% / 10% / 35% / 100%
100% / 35% / 10% / 1% / 0.1%
1% / 20% / 100% / strobe / biking / battery-check / sos
1% / 20% / 100%
100% / 20% / 1%
0.1% / 1% / 10% / 50% / strobe / biking / battery-check / sos
0.1% / 1% / 10% / 50%
50% / 10% / 1% / 0.1%
1% / 10% / 35% / 100%
100% / 20% / strobe
100%
Limited Clearance! Save Up to 94%! 1700+ Pcs From $0.59! First Come, First Served!
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PIONEMAN U8A Tactical LED Flashlight
1*Luminus SST70 / 12-group/55-mode / 4000LM / pure white / 1*21700 / lanyard / IPX4 waterproof / intelligent temperature control
Voltage: 3.7-4.2V
Head diameter: 55mm
Intelligent temperature control: When the temperature of the flashlight reaches 55’C, the temperature control system will continuously automatically adjust the output current, and return to normal output when it is lower than 55’C
15 layers of heat dissipation, fully protect the internal circuit
12-group/55-mode:
The flashlight enters the flashing state, flash 1 time, then turn off the flashlight, select the first group; flash 2 times, turn off the flashlight, select the second group; flash 3 times, turn off the flashlight, select the third group; and so on.
Optional gear group: (where biking is a beacon, battery check is a battery capacity test, each flash represents 25%)
0.1% / 1% / 10% / 35% / 100% / strobe / biking / battery-check
0.1% / 1% / 10% / 35% / 100%
100% / 35% / 10% / 1% / 0.1%
1% / 20% / 100% / strobe / biking / battery-check / sos
1% / 20% / 100%
100% / 20% / 1%
0.1% / 1% / 10% / 50% / strobe / biking / battery-check / sos
0.1% / 1% / 10% / 50%
50% / 10% / 1% / 0.1%
1% / 10% / 35% / 100%
100% / 20% / strobe
100%
Fenix LR50R Multifunctional Super Bright Searching LED Flashlight
4*Luminus SST70 / 9-mode / 12000LM / cool white / 1*battery pack/1-4*21700 battery / standard tripod socket / intelligent brightness downshifting sensor
Compatible with 1-4 21700 Li-ion battery (not included).
USB Type C charging and discharging interface, supports PD3.0/PD2.0, QC3.0/QC2.0 fast-charging protocols.
JETBeam MINI-ONE SE EDC LED Keychain Flashlight
1*Cree XP-G3+2*auxiliary LED / 7-mode / 500LM / neutral white & RGB & UV / USB-C rechargeable / IPX8 waterproof (2m underwater)
Head diameter: 14.6mm
Tube diameter: 13.2mm
Automatic overheat protection
1.5m fall resistant height
1*LED 6-mode 1000LM LED Headlamp
pure white / 1*18650 / Micro-USB rechargeable / IPX6 waterproof / angle adjustable / stepless dimming
JETBeam MINI-ONE LED Flashlight
1*Cree XP-G3 + 2*auxiliary LED / 7-mode / 500LM / pure white & UV & RGB / USB-C rechargeable / IPX8 waterproof (2m underwater)
Head diameter: 14.6mm
Tube diameter: 13.2mm
Temperature control technology
Automatic overheat protection
