Since it is quite dark on the way to get off work, I have always wanted to buy a flashlight that is small, lightweight, but with high brightness. I finally chose a 10W LED. The circuit part is very simple, with a charging circuit and an LED boost constant current output circuit. The total cost is within 15. It can achieve fast DC stepless dimming. After applying heat dissipation silicone grease, the actual heat generated by the LED is still acceptable, which can meet my short-term lighting needs. It is very convenient to use. Push it up to turn on the light, pull it down to turn off the light, and the current to turn off the light is 0 , basically no loss. The effect is amazing. It feels brighter than my previous 48-lamp searchlight. Although the previous 48-lamp searchlight only had 3-5W of full power, this 10W one is obviously brighter. It is simpler and more convenient to use, and the key is simple dimming. fast.
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