1. Suitable for testing semi-finished or finished light bulbs. (B22 E14 E27 type lamp, AC load) 2. Short button to switch "Voltage" or "Power" display. 3. Lamp Failure Auto Alarm function can alarm lamps that do not meet the standard range. 4. Simply plug the LED into the correct hole and the button to test. 5. Made of high quality materials for durability. Lamp holder interface is quick-plug type, convenient and quick. Product type: LED test box Type: A type (with display) Scope of application: Lamp power test AC voltage: 0-300V AC, measurement accuracy 0.5% AC power: 0-400W, measurement accuracy 0.5% Buzzer: one sound: product passes, more sounds: product fails Voltage: 220V Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on Color: White & Red & Black Material: plastic Package Contents: 1 set x LED power tester (alarm model) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.