Lighter than LIGHTS is a series created by ULHRA, Inc. for hydroplanes that are smaller, and yes lighter than Unlimited Lights.  Presently the Lighter than LIGHTS (LTL) series competes in Washington State and involves 2 classes of hydroplanes; 4 cylinder stock, and 8 cylinder stock.  There is potential to add more classes in the LTL program in the future. 
 
The Lighter than LIGHTS program was launched in 2003 and was begun with the idea that it could lead to more teams growing into Unlimited Lights racing programs.  That idea has become reality and is one of many reasons why ULHRA, Inc. is the fastest growing hydroplane racing organization in North America. 
 
Here is a look at the Lighter than LIGHTS teams.

4 Cylinder Teams      8 Cylinder Teams