Description: Input voltage: 85-265V Output voltage: 0-300V Power: 18W Size: 10.4 * 6.3 * 3.6cm Specifications: Screen-free LCD TV maintenance testing lamp with lamp strip lamp 0-300V high-brightne screen-free version: Input Voltage: 85-265V, output voltage: 0-300V, Power 18W. Automatic detection of output voltage and current. Can test any size LED backlight and lamp beads. High brightne, no need to open the screen can judge the quality of backlight. 1. Using high-speed single-chip microcomputer to do voltage sampling test, and drive LED lamp display voltage (not other products on the market using the purchase of voltmeter head, separate installation) to achieve integration of board and card, reduce the bad rate (because the current is constant, only do voltage display function) . 2. 0-300V adaptive voltage, suitable for most series-parallel bead test. Test, using progreive start mode, the voltage automatically adapt, the current gradually increased, will not burn beads, three to five seconds after the normal brightne can be achieved. LAMP strip, lamp beads positive and negative pole reverse, not burning lamp strip and lamp beads. 3. digital display real-time voltage output, with adjustable voltage, voltage value can be self-calibration. The digital table adopts green light-emitting tube, showing 00 is for short circuit, showing 300V is for open circuit. The same set of LCD TV LED bar display voltage should be the same. 4. hot and cold isolation, never electric shock. Power Cord and box integrated design, easy to carry out. 5. You can light up your LCD TV without having to open the screen. (there is a bad lamp bead screen-like lighting, LCD TV is generally divided into several groups of parallel, you can see which group of voltage different voltage, thus judging which group of LED lamp bead damage). 6. Do not look directly at the light bulb during testing because of the highlighted version. Don't hurt your eyes. Package Included: 1* LED Tester