When to consider LED Lights Defective
| Entry Date | October 3, 2004 |
|---|---|
| Issue Number | 04-022-VEH |
| Name | Donald Bridge, Jr. |
| Agency | Connecticut Department of Motor Vehicles |
| Address | 60 State StreetWethersfield, CT, 06161United StatesMap It (opens in a new tab) |
| Phone | (860) 263-5446 |
| Fax | (860) 263-5587 |
| [email protected] | |
| Committee | Vehicle Committee |
| Status | Closed |
| Summary of Issue | With the new LED lights, how many of the small lights in a brake, tail or signal light should be burnt out before the light is considered defective/violation and/or out of service. |
| Justification or Need | With the newer models of CMV's, there are more and more LED lights being installed on CMV's. LED lights are beginning to fail and officers need to know how many of the samll internal bulbs must be burnt out before the vehicle is condsidered to have a defect and how man have to be out to have an OOS condition. |
| Request for Action | There should be added to the OOS criteria a percentage of small bulbs (50%) that need to be burnt out in order to meet the OOS criteria. Some jurisdictions have a requirement that the lights must be visible for 150 meters. Perhaps tests should be done to determine the percentage. As it now stands the North American Uniform Out-Of-Service Criteria does not address a partially lit condition. LED Lamp Failure The inspection questions related to LED lamp failure involve: When should a failing LED lamp be replaced? How many individual LEDs should remain "on" for the lamp to be acceptable? Is there a failure "rule" for each type and brand of LED lamp? |