Here's the breakdown:
* In British English: The "L" is often silent, making it sound like "eye-ets".
* In American English: The "L" is typically pronounced, making it sound like "eye-el-ts".
For the IELTS test:
* The official pronunciation guide on the IELTS website uses the British English pronunciation, with the "L" silent.
* You'll hear the "L" silent in the test recordings and from the examiners.
Therefore, even if you are used to pronouncing "L" in American English, it is best to use the British pronunciation with the silent "L" when taking the IELTS test.