Weve released our new flashlight; please see one of the reviews below.
The TN12 has a safety circuit to protect the driver and the LED from overheating.
How does it work?
The maximum safe temperature on the driver is set to 85°C, the driver will check the temperature every 10 seconds and if the temperature is higher than 85°C, it will drop the current by 50mA every 10 seconds until the temperature drops below the safe temperature. Once the driver cools to below 80°C, it will start increasing the current by 50mA every 10 seconds if it is below 80C.
Why has Thrunite adopted this technology? What are the advantages of it?
With the development of LED power, flashlight users dream that their flashlight can produce more lumens but keep the same compact sizes they are familiar with
To achieve more LED power requires more current, TN12 uses a Cree XM-L U2 LED with the maximum luminous efficiency, which means the safety of using at its maximum potential also needs to be considered. Because the higher current, heat dissipation may become a crucial factor to flashlight reliability. In order for the TN12 to have good heat dissipation we designed it boldly through two aspects: firstly, we used a copper board to make the heat conduction of LED . Why use a cooper board? Because cooper has the better heat conduction ability and it can let the bottom pad of the LED to stick on to the copper board directly. Because of this, it can achieve thermal isolation efficiently. On the contrary, Al boards heat dispersion can not reach this capability. So by using a copper board, the LED's lifespan is extended through its good heat dispersion.
Even though the copper board is capable of dispersing heat quickly, there is still a significant amount of heat. The temperature will increase quickly, which may lead to damage of the circuitry. The heat then transfers to the body of the flashlight, which can harm the flashlight user. Because the flashlight body has become so hot, the user will shut it off until it has cooled, rendering the flashlight useless.
To solve this dilemma, the Thrunite TN12 has adopted another key piece of engineering. Electrical components of the circuitry monitor the temperature of the flashlight constantly to ensure safe use throughout the life of the flashlight. All safety temperatures of electronic component is set to 85 degree, if the temperature is higher than 85 degree, the performance of electronic component will be affected, it also can be potential threat to the flashlight life. So we set 80 degree as the highest temperature to protect the driver. This not only protects the circuitry from overheating but it protects the user from any harm.
Thrunite always pursues more brightness, more efficiency, more stability and more safety. By many testing we find that if we adopt this method of controlling temperature, we can get the most brightness at the same time can ensure the safety of usage. By doing so, the Thrunite TN12 can reach 690 lumens amazingly.
The other good features on TN12
1: The latest LED with copper board for LED perfect heat sink
2: Firefly Mode with longer runtime:
We design the Firefly mode lower than 0.08lumens. can get 695 hours run time
They can get 690 lumens momentary with 2Cr123A batteries. It is perfect for EDC. It make the enemy lost tmeparry attack!
4:Simpler User interface:
Just loosen and tighten head for next stage with memory. Forwards click for momentary on.
Cree XM-L U2 LED with a lifespan of 50,000 hours
Uses two 3V CR123A batteries (Lithium) or one 18650 rechargeable battery (Li-ion)
126mm (Length) x 25.4mm (Diameter)
66gram weight (excluding batteries)
Digitally regulated output - maintains constant brightness
Cooper base plate for more efficient heatsinking
Max output: 705 lumens with more than 1 hours for 2 Cr123A
Max runtime:695 Hours
Firefly: 0.09lumens. 695 hours. low: 30 lumens:65 hours.mid: 95 lumens: 9 hours. max output: 705 lumens. 72 minutes. strobe: 705 lumens. 140 minutes
Max beam distance:205m
Peak beam intensity:19536cd
Waterproof to IPX-8 standard
Reverse polarity protection, to protect from improper battery installation
patent Temperature control current to avoid the over heat on the surface and protect the driver to be damaged
slip-resistant body design
Removable Stainless steel clips
Tactical tail switch with momentary-on function
Made of durable aircraft-grade aluminum
Premium Type III hard-anodized anti-abrasive finish
Toughened ultra-clear glass lens with anti-reflective coating
OperationPower on/off switch Press the push button half way for momentary on. Press the bush button completely (click) to turn on the flashlights. The lights will stay on until the push button is pressed fully to turn off
Mode switch To switch functions: Loosen and tighten the head for next stage From Firefly. Low mid light and strobe
MSRP: 75 USD