1. bulb lamp 2. made of SAE approved material 3. three color options: red, amber and clear 30-2238-A/30-2238-R :30 means bulb lamp;22 means 2.2 inch length;38 means 3.8 inch width;A means amber color;R means red colorC means clear colorPC cover: This material passes the SAE certification, is has wonderful features of thermostability, uvioresistant,invariant color;it also has high transparency and ...