There are different laser lens modules available the PS3 slim consoles.
But only the correct one will work for you.
You need to make sure that you purchase the correct laser for your specific console.
The surest way is to open up the console. If your original laser is a KES-460 KEM-460 or 460, then this is the correct replacement item for you.
Supports the following PS3 Slim consoles with a 460 laser inside:
CECH-3000A, CECH-3001A, CECH-3002A, CECH-3003A, CECH-3004A,
CECH-3005A, CECH-3006A, CECH-3007A, CECH-3008A, CECH-3011A .. CECH-3xxxx
CECH-3000B, CECH-3001B, CECH-3002B, CECH-3003B, CECH-3004B,
CECH-3005B, CECH-3006B, CECH-3007B, CECH-3008B, CECH-3009B .. CECH-3xxxx
CECH-2500A, CECH-2501A, CECH-2502A, CECH-2503A, CECH-2504A,
CECH-2505A, CECH-2506A, CECH-2507A, CECH-2508A, CECH-2511A .. CECH-25xxx
CECH-3000B, CECH-2501B, CECH-2502B, CECH-2503B, CECH-2504B,
CECH-3005B, CECH-3006B, CECH-2507B, CECH-2508B, CECH-2509B .. CECH-25xxx