50W Super Powerful Super Invincible Super Bull X Strong Light LED Searchlight Outdoor Lighting Crane Shanlishi C1500

First, let’s take a look at the complete physical picture.
I equipped it with a tripod stand (adaptable to most camera stands on the market), and it’s just perfect.
The assembled finished product is displayed. There are many screws. Pay attention to the installation steps. Some places may get stuck. Adjust the installation steps and the assembly can be completed normally (no miracles are required).
Laboratory test data, regulated power supply 16.8V (4S lithium battery) Fully charged state) The power supply can reach an actual output power of 44.4W, and the measured input voltage reaches 17.8V and the output power can reach more than 50W.
Why do I say it kills Sanglis instantly? Because I have been interested in the Sanglis C1500 searchlight a long time ago, but because it seemed to be not cost-effective (poor), I was discouraged, so I started self-development. The
official introduction of Sanlis C1500 reaches 1500 lumens. The brightness given by Du Niang is about 20W.
According to the official battery life parameters of Sanlux, the battery life is 1500 lumens for 5.5 hours. The battery power is 3.7V-13500mAh, and the average power is about 9W. Therefore, the 44.4W in my laboratory is simply a flash sale.
Thank you for the free PCB provided by Jialichuang. Just solder the board that has been cleaned and washed. It is not difficult to solder. The selected large chips are very easy to solder. The important thing to note is to solder the small components first and then the big ones. , because the soldering iron tip may be blocked in some places after soldering large components.
The front side
mainly contains 3 parts of the circuit, a maximum 5A constant current LED driver chip XL3005E1, a high voltage LDO chip ME6203A50PG, an analog value converted to PWM chip GP9101-F20K, a high current ship-shaped switch as the main switch, and the dial knob as Brightness adjustment switch (I love this kind of knob switch so much, the stepless adjustment feels so comfortable). After the main switch is turned on, the temperature reaches above 30 degrees, and the cooling fan circuit can start working (specifically, the resistance value of the NTC series resistor can be changed. fan starting temperature).
The reverse side is just a connector socket. Note that the NTC must be passed through first and then welded. A 1/4 inch nut is welded to the middle round hole (be careful not to weld it on the back of the board with the chip, it needs to be welded to a new board), which can be fixed to On the camera stand.
The LED fixing board is relatively simple, just weld 4 studs and one LED lamp bead (note that the PCB is made of aluminum substrate and needs to be coated with thermal conductive silicone grease). Aluminum substrate is not easy to weld, so you need a high-power soldering iron head or buy one online. LED lamp bead desoldering station (it only costs a dozen yuan, it is very easy to heat it to more than 100 degrees and then use a soldering iron to solder it).
Here you need to pay attention to the 4 protruding lampshades and use a vise to bend them so that they stand up, otherwise It will block the front plug-in.
Finally, calculate the cost table. Laboratory data flash sale is nothing. Cost flash sale is king, hahahaha!
 
Pay attention to choose 12V lamp beads. Although the product description of Xinwei store is 30V lamp beads, the actual test is 12V lamp beads, so I was forced to choose a high current constant current chip. The list price  
of the product totals 38.8 yuan. The 12 Sanlux LED lamp beads are estimated to be 18650 with 5 cells of 2700mAh. Calculating it is 10 yuan per section, +50, the total price is 88.8 yuan. Haha LED lens (120-degree wide illumination range) 11 doesn’t even need a fraction of the mountain strength hahahaha! Corner code 2 CPU cooler (second-hand) 12.9 screws (do DIY with more or less screws = no money) 0 fixed plate PCB1 (needs to make an aluminum base plate and apply thermal conductive silicone grease on both sides) 0 driver board PCB2 0 tripod (a long time ago Bought = no money) 0 This version is over. If you have any needs for the next version, you can mention it in the comment area. 1. Dual color temperature lamp beads (this analog to PWM chip has 2 complementary PWM outputs. If there are 2 If you use lamp beads, you can adjust the color temperature of 2 channels with one switch.) 2. Type-C power supply (this can directly induce 20V input and run directly to 50W, yes it works!!!) 3. Shell (not recommended, maybe. It will affect heat dissipation (mainly because I can’t draw 3D yet...)) 4.