Review on 🔦 Waterproof Headlight for Outdoor Sports - SecurityIng 1800Lm 4 Modes 3 LEDs Headlamp & Bicycle Light with 4400mAh Battery Pack and Charger by Daniel Icyblue

Very bright, the quality of the light itself is above my expectations, the housing is made entirely of aluminum and the reflector shell, the device heats up very well, thermal paste was used from the LED circuit board to the ring, the attached to the body. The circuit board was also well designed, I liked the switch, it's green, comfortable to the touch, soft to the touch. It's stupidly bright for an 8.4v setup 2, ran 2.5 hours on a single charge but was still low on power. for another 20 minutes MAYBE. I tried it first for $28 and then had to buy another one because it was damn bright for the money even though it was twice the price. I bought another brand that claimed "The brightest is the best backlight." , was more like a 500, SMH, which I paid $46 from Revain for. 4800k, the second gave about 6000k.2. When I turned on the first one, one LED lit up but was significantly dimmer than the other LEDs, even less bright than the other 4800k light. The difference is about 3-400 lumens between different lighting conditions at low setting.3. Rubber O-rings scream cheap! It is difficult to install the small o-rings on the handlebar, and the large o-rings fit, but not tight enough, the light will change the angle on the handlebar when the bike jumps.4. Why are the front and back of the case sealed with O-rings, but the power cord entry is not sealed? No problem as I used RTV silicone to seal it I can now submerge it in water but I won't. that FOUR stars would have been THREE due to sophistry if the price was $60 instead of $28.5. It's not really 3600 lumens, in theory yes, but it's more like 1500 lumens when it's fully on. worth your money.