The headlight is cold. At the maximum setting, it lights up like my other flashlights with the T6 diode on the medium setting. The side light didn't work at all. I fixed it myself, but not everyone can do it. You had to pull out the usb connector and solder the red wire. The side light shines well and has a nicer color than the front light. That's all.
One flashlight Out of multiple purchased found to have a missing Lens+SurroundRing & ensuing dispute resulted in satisfactory outcome & I/buyer can happily recommend this great product, service & merchant concerned to all potential customers.