1. Powerful Flashlight: Sofirn IF30 utilizes 1*SFT40+12*TN-3535 LEDs with a maximum of 12,000 lumens, suitable for various outdoor activities. 2. Updated Rotary Switch: A simple rotary switch to select spot and flood mode. An updated knob switch allows you quickly to toggle between various brightness modes. 3. Smaller Size: Compared with Q8Plus, IF30 is smaller in size and more suitable for daily carrying. At the same time, it uses a 32650 rechargeable lithium battery with long battery life. 4. Automatic Locking Function: In the off state, the machine will be automatically locked after about 15 seconds without any button action. When unlocking, it needs to be rotated rapidly for more than 60 degrees at one time, and the indicator light is on to be regarded as successful unlocking. Specifications: Emitter: High-powered LEDsBattery Option: 1x 32650 batteryWorking Voltage: 3V-4.2VStandby Drain: ＜230uA Maximum Charging Current: 3AMaterial: AL6061-T6 aluminium alloy Size: 2.45*5.07 inch (62.4*129mm )Weight: 9.27oz (263g--without a battery)Spotlight beam angle: 6, floodlight beam angle: 70ATR: In Turbo mode, the flashlight heats up easily. To prevent over-heating, IF30 automatically drops to lower brightness level when the temperature reaches 55.Low Voltage Protection: Red indicator flashes when the battery voltage is low, indicating that the remaining battery power is poor. When the battery voltage is lower than 2.8V, the flashlight turns off automatically to protect the battery from being discharged.
Something new from Sofirn. These larger cells (than 26800) seem to be popping up in flashlights more often now. This one lists 6500 mAh which isn’t a much bigger capacity but presumably the maximum discharge must be pretty high to support 12000 lumens.
Sft-40 in the center surrounded by flood emitters. This isn’t one I’ll be picking up, maybe I’ll hold out for a 461000 cell!
It kind of makes sense if you look at the geometry though. Look at the wasted space in the 3*AA holder and think how many more Wh you could get if that space were filled with more anode/cathode/electrolyte.
There are some adapters that squeeze four AA’s into the D cell format. This is theoretically a little too thick, but it will fit in many devices where the battery tube is not too snug.
It kind of makes sense if you look at the geometry though. Look at the wasted space in the 3*AA holder and think how many more Wh you could get if that space were filled with more anode/cathode/electrolyte.
There are some adapters that squeeze four AA’s into the D cell format. This is theoretically a little too thick, but it will fit in many devices where the battery tube is not too snug.
By pure volume a D cell is around 7x an AA.