Check FHWA for the latest WZ numbers of "Acceptable Crashworthy
Category 2 Hardware For Work Zones"
Our lightweight Y2K and 2006 Models can be used on a number of "generic devices" see WZ-54. See WZ-06 for details on the devices. They are less than 1.2kgs (check WZ-16 also). Our standard barricade lights with one battery are also less than the 1.5 kg limit. WZ-54 states that Drums with lights can be moved from Category 2 to Category 1. See WZ-149 which has a standard light with one battery tested on a temporary sign stand.
Our lights have been tested on a number of devices: WZ-24 and WZ-46 have a number of various types of traffic control devices manufactured by Traffix Devices. WZ-14 is for a Type II barricade manufactured by Plasticade Products. WZ-44 is for a Penn. DOT Type III using a Type B Detachable light. WZ-22 is for the Yodock 2001 barrier w/T3 Apparatus using a Model 212 Type B light.
WZ-99 has our large and heavy metal can Model 1101 B-Lite on a portable sign passing NCHRP350.
Other warning lights have been tested on various devices. Our lights can therefore be self certified since they are of equal or less weight. See: WZ-36 for Protection Service's Type II; WZ-38 for Flex-O-Lite's Type I, II, III and Vertical panel; WZ-47 for Cortina's barricades; WZ-26 for Work Area's Drum with a light.