{"product_id":"multi-purpose-led-light-bulb-tester-e27-b22-e14-gu10-g4-g9","title":"Multi-Purpose LED Bulb Tester E27 B22 E14 GU10 G4-G9 | PFULTR","description":"\u003cp\u003eTest any LED or standard lamp quickly and accurately with the \u003cstrong\u003ePFULTR Multi-Purpose Light Bulb Tester\u003c\/strong\u003e. Compatible with E27, B22, E14, GU10, and G4–G9 bases, this all-in-one tester measures voltage, current, power, and power factor — giving you professional-grade diagnostics in a compact, easy-to-use device. Whether you're a lighting technician, electrician, or DIY enthusiast, this tester is built to handle a wide range of bulbs and lamp assemblies with precision and safety.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOne Device, Multiple Purposes:\u003c\/strong\u003e Dual control switch supports testing of voltage, current, power, and power factor. Compatible with B22, E14, E27 lamp types, AC loads, and cable clamp connections.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Precision Measurement:\u003c\/strong\u003e Error margin within ±0.2% ensures reliable and accurate readings every time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeesaw Safety Switch:\u003c\/strong\u003e Simultaneously cuts both live and neutral lines. Built-in indicator light provides clear visual status for safer operation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlug-In Convenience:\u003c\/strong\u003e Simply insert your LED lamp into the correct socket and flip the switch — no complex setup required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Clamp Connection:\u003c\/strong\u003e Connect to capless lamps including ceiling lights, downlights, spotlights, floodlights, and ventilating fans.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShort Circuit Overload Protection:\u003c\/strong\u003e Equipped with a 5×20mm 3A fuse to protect both tester and lamp from sudden short-circuit damage.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAutomatic Alarm Function:\u003c\/strong\u003e Instantly alerts you when a defective lamp falls outside standard performance ranges.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Application Range:\u003c\/strong\u003e Suitable for drive power testing, lamp bead testing, lamp board testing, and high-voltage applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterface Types\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eE27 \/ B22 \/ E14 \/ GU10 \/ G4–G9\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShape\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRectangular\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEngineering Plastic + Phosphor Bronze\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e142 × 82 × 27 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–600W\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeter Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLevel 2\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFuse\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5×20mm, 3A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePlug Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEU \/ US\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003ePackage Includes\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Multi-Interface Light Bulb Tester\u003c\/li\u003e\n  \u003cli\u003e1 × EU or US Plug (selected at checkout)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRelated Products You May Like\u003c\/h2\u003e\n\u003cp\u003eWhile you're here, explore more tools and accessories from our store:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/round-aluminum-wire-diy-jewelry-making-1mm-3mm\"\u003eRound Aluminum Wire 1mm–3mm | DIY Jewelry Making Wire\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/ccb-flat-round-spacer-beads-diy-jewelry-making\"\u003e4\/6mm CCB Flat Round Spacer Beads DIY Jewelry Making 100-200pcs\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What lamp socket types does this LED bulb tester support?\u003c\/h4\u003e\n\u003cp\u003eA: This multi-purpose light bulb tester supports E27, B22, E14, GU10, and G4–G9 socket interfaces, making it compatible with the most common lamp base types used in residential and commercial lighting.\u003c\/p\u003e\n\u003ch4\u003eQ: Can this tester be used on lamps without a lamp cap?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The dual clamp feature allows the tester to connect directly to capless lamp assemblies, including ceiling lights, downlights, spotlights, floodlights, and ventilating fans — making it ideal for testing semi-finished and finished lighting products.\u003c\/p\u003e\n\u003ch4\u003eQ: Is the LED bulb tester safe to use?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. The tester is equipped with a seesaw safety switch that cuts both live and neutral lines simultaneously, a built-in indicator light for clear operational status, and a 5×20mm 3A fuse for short-circuit overload protection. The automatic alarm function also alerts you when a lamp is out of standard range, adding an extra layer of safety.\u003c\/p\u003e\n\u003ch4\u003eQ: What does the alarm function do on this light bulb tester?\u003c\/h4\u003e\n\u003cp\u003eA: The built-in alarm function automatically triggers when a tested lamp's performance readings fall outside the acceptable standard range, helping you quickly identify defective or underperforming bulbs without manual calculation.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What lamp socket types does this LED bulb tester support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This multi-purpose light bulb tester supports E27, B22, E14, GU10, and G4–G9 socket interfaces, making it compatible with the most common lamp base types used in residential and commercial lighting.\"}}, {\"@type\": \"Question\", \"name\": \"Can this tester be used on lamps without a lamp cap?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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