0-300V Output Led TV Backlight Tester Multipurpose Led Strips Beads Test Tool Ls d Tool HWL300 Led Lamp Bead Lamp Strip Tester Features: _x000D_ High speed single-chip microcomputer is used for voltage sampling test, and LED lamp is driven to display voltage (by no means other products on the market use purchased voltmeter heads, which are installed separately) to achieve board card integration and reduce defective rate (because the current is constant, only the voltage display function is used.) _x000D_ 0-300V adaptive voltage, suitable for most series and parallel lamp bead tests. During the test, the gradual startup mode is adopted, the voltage is automatically adapted, the current is gradually increased, and the lamp beads will not burn, and the normal brightness can be achieved in three to five seconds. The positive and negative poles of the lamp bar and lamp bead are connected inversely, without burning the lamp bar and lamp bead. _x000D_ Digital display of real-time voltage output, with adjustable voltage, the voltage value can be self calibrated. The digital meter adopts green light-emitting tube. 00 indicates short circuit and 300V indicates open circuit. The display voltage of each group of LED light bars of the same LCD TV shall be the same. _x000D_ Cold and hot isolation, never get electric shock. The integrated design of the power cord and the machine box makes it easy to carry when going out. _x000D_ You can light up the LCD TV screen without removing the screen. (The screen with bad lamp beads is lit as well. The LCD TV is generally divided into several groups in parallel. The voltage can be used to see which group of voltages are different, so as to determine which group of LED lamp beads are damaged.) _x000D_ When testing, do not look directly at the lamp bead because of the highlighted version. To avoid eye injury. _x000D_ Specifications: _x000D_ Name: LED lamp bead lamp strip tester _x000D_ Input Voltage: 85-265V _x000D_ Output Voltage: 0-300V _x000D_ Power: 18W _x000D_ Automatic detection of output voltage and current. _x000D_ Product Usage: dismount free LED backlight LCD TV maintenance detection lamp bead lamp with lamp board lamp strip tester lamp lighter, which can test LED backlight and lamp bead of any size. High brightness, you can judge the backlight without removing the screen. _x000D_ Operation Specifications: _x000D_ Adaptive voltage, current, automatic identification of lamp beads and light bars. _x000D_ Input voltage: 85-265V AC. Output voltage: 0-300V DC 0-19V DC. _x000D_ Can test lamp beads, various good and bad lamp boards and lamp strips (individual lamp beads are damaged and lit correctly). _x000D_ Short circuit the stylus for plus or minus three seconds to switch between high and low voltage. _x000D_ Notices: _x000D_ When the positive and negative poles are uncertain, please use 19V voltage to detect the positive and negative poles. It is prohibited to use 300V voltage to detect the positive and negative poles. 300V voltage may cause damage to the equipment. Short circuit the pen for three seconds and switch between high and low voltages. _x000D_ Removable free screen LED backlight LCD TV maintenance and detection Bead lamp with light strip tester 0-300V High brightness Removable free screen version: input voltage: 85-265V, output voltage: 0-300V, power 18W. Automatic detection of output voltage and current. It can test LED backlight and lamp beads of any size. High brightness, you can judge the backlight without removing the screen. _x000D_ Package Includes: _x000D_ 1Pcs Host _x000D_ 1Pcs probe _x000D_ 1Pcs manual _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_