Decorative lighting strings including holiday, seasonal or Christmas lights can carry potential safety risks when subjected to unforeseen consumer misuse or when they are not manufactured in accordance with UL's safety requirements. The familiar UL Listing Mark on a product means that UL engineers have evaluated and tested representative samples of the product for risk of fire, electric shock and other hazards and determined the samples conformance to UL's requirements. Indoor-use only light strings are marked with UL's green holographic label. Indoor or outdoor-use light strings are marked with UL's red holographic label.
UL evaluates decorative lighting strings in accordance with the requirements described in the UL / ANSI 588, the Standard for Safety of Seasonal and Holiday Decorative Lighting. The ANSI designation indicates that the American National Standards Institute approves the UL Standard as the American National Standard.
Most retailers will only sell decorative lighting strings that have been evaluated to this Standard.
UL 588 and the Two Strike Program
In order to verify that lighting strings are manufactured in accordance with UL's requirements, UL introduced an enhanced factory surveillance program. Under this program, samples are selected from each active manufacturer twice a year for testing.
Various components of the product are subjected to tests at UL including the wire, plastic material, and lamp holders. If UL finds a major failure, the product is placed on hold, and the applicant and manufacturer are issued a program nonconformance. This nonconformance is known as a Strike. The manufacturer is not permitted to apply the UL Mark until it can provide a suitable root cause of the failure and put into place the necessary corrective action. The manufacturer will then need to resubmit samples to UL that were manufactured after the corrective action was put into place and determined to comply with the requirements. The factory is then placed on an increased surveillance program until it is determined that the corrective action has been effectively put into place.
In addition to UL's factory surveillance program, samples of lighting strings may be purchased from the marketplace during the selling season for testing under the UL 588 Market Survey program. If there is a test failure under the program, the applicant and manufacturer are issued a strike. Two strikes occurring within a two-year period result in withdrawal of the applicant and manufacturer and ultimately termination of its use of the UL Listing Mark for decorative lighting strings.
UL's Decorative Light String No Strike List
No Strike List-1: Consists of applicants with manufacturers that have had samples selected during the Market Survey program and have not had a strike under the UL 588 Two Strike Program for a minimum of three consecutive years.
No Strike List-2: Consists of applicants with manufacturers that have not had a strike under the UL 588 Two Strike Program for a minimum of three consecutive years but did not have samples selected during the Market Survey program.
Any questions please contact:
Anthony Tassone
Principal Engineer
Tel: +1.631.546.2943
[email protected]
Decorative Lighting Strings - No Strike List
Revised: April, 2019
| Decorative Lighting Strings - No Strike List - 1 | |
| File No. | Company Name |
| E254513 | Abundant Resource Development Ltd. |
| E313650 | All Seasons Electronic Lighting Ltd. |
| E189226 | Advanced International Inc. |
| E241529 | Apex Chance Industry Co. Ltd. |
| E190242 | Bojie Electric Co. Ltd. |
| E126258 | Century Marble Trading Co. |
| E345709 | Crownwell Corp. Ltd. |
| E119491 | Dashing Electric & Plastic Co. Ltd. |
| E335294 | Dongguan Fuxing Lighting & Gift Co. Ltd. |
| E335499 | Dongguan Haoteng Electric Co. Ltd. |
| E209070 | Dongguan So Yang Decorative Lighting Ltd. |
| E320252 | Fa Yeung Lighting Co. Ltd. |
| E310355 | Gaze Art Lighting Co. Ltd. |
| E98543 | Golden Shine Electric Co. Ltd. |
| E321244 | Golden Vessel Electronic & Lighting Inc. |
| E127357 | Grand Asia Electric Co. Ltd. |
| E63536 | H.S. Craft Mfg Co. |
| E238369 | H.S. Craft Mfg Co. |
| E316855 | Heshan Hochang Lighting Co. Ltd. |
| E312307 | I-Zenx International Co. |
| E302742 | Jia Xin Electric Co. Ltd. |
| E127522 | June Sing Industrial Co. Ltd. |
| E241906 | Keymax Corp. |
| E187578 | Kwang Ta Electric Co. Ltd. |
| E115759 | Lean Hoon Co. Ltd. |
| E187219 | Leapak Co. Ltd. |
| E175996 | Long Bright Electric Enterprise Co. Ltd. |
| E149249 | Ming Chuan Industrial Co. |
| E233184 | Nixan International Ltd. |
| E144405 | Polestar Electric Industries Co. Ltd. |
| E357826 | Santa Joy Ornament |
| E174972 | Shen Shing Electric Co. Ltd. |
| E35437 | Sienna |
| E65770 | So Yang Enterprise Co. Ltd. |
| E236968 | Starpress Industrial Ltd. |
| E318717 | Taizhou Tengyuan Decorative Lighting Co. Ltd. |
| E359320 | TG-Brother Christmas Gift Co. Ltd. |
| E215073 | Top Lights Co. Ltd. |
| E48723 | Toyo Electric Mfg. Co. Ltd. |
| E52643 | Willis Electric Co Ltd. |
| E335120 | Zhejiang Jet Machinery & Electronic Co. Ltd. |
| E257148 | Zhejiang Qianxing Lantern Co. Ltd. |
| Decorative Lighting Strings - No Strike List - 2 | |
| File No. | Company Name |
| E254175 | Bortex Industry Co. Ltd. |
| E106094 | Chia Tsin Electric Co. Ltd. |
| E326856 | D Sun Hardware |
| E182192 | Dongguan Kingsun Optoelectronic Co. Ltd. (A Branch Factory) |
| E320252 | Fa Yeung Lighting Co. Ltd. |
| E310869 | Guangde Ledup Enterprise Inc. |
| E207908 | H.S. Craft Mfg. Co. (Huizhou) |
| E362454 | Heshan City Into Lighting Co. Ltd. |
| E305455 | Jinjiang Wonderful |
| E188253 | Jetmax Ltd. |
| E233742 | Li Chen Ltd. |
| E301241 | Packo Gift Co Ltd |
| E312621 | Seasonal Specialties LLC |
| E56161 | Tung Ming Electrical Co. Ltd. |
| E305737 | Yun Meng Yun Xi Lighting Co. Ltd. |
| E361389 | Zhangzhou Go Win Lighting Co. Ltd. |
| E119568 | Zhejiang General Festival Lanterns Factory |