Multi-Range Quick Test Holder 12 Port Led Bulb Tester Versatile LCD Led Tester for E27 B22 E14 Lamp Bulb Test Features: [Quality Material] Made of high quality materials, durable to use. [One device for multiple purposes] Double control switch, test voltage + current + power + power factor, suitable for testing semi-finished or finished lamps (B22, E14, E27 type lamp, AC load, cable clamp). [High precision test]The error range is 0.2%. [Swing Switch] Capable of turning off the live line and zero line at the same time, and the built-in indicator light makes the operation much safer. [Plug-in interface] The plug-in interface of the lamp holder makes testing more convenient and efficient, so you just need to simply plug the LED lamp into the correct hole and press the switch to test. [Double clamp]Able to connect to lamps without cap, such as ceiling lamps/light fixtures/spotlights/spotlights/ventilation fans etc. [Short circuit overload protection]Equipped with fuse, can protect the tester and lamps from burning and damage when the lamp is suddenly tight. [Alarm function] The tester automatically alarms when faulty lamps do not meet the standard range. [Wide Application] Applicable to drive power test, lamp bead test, lamp board test, etc. Suitable for high voltage. Technical data: Product: multi-interface quick test floor lamp Interface type: E14 E27 B22 Product shape: rectangular Product color: white Product material: new material engineering plastic + phosphor bronze Product size: 142*82*27mm Power range: 0-600W Meter head accuracy: level 2 Type insurance: 5*20mm 3A Package: 1 x lamp tester 1 x EU/US plug