Choosing Between the SLX 300t and 800t Technical Dive Lights
Here are the major differences between the two:
800 lumen output
2-8 hour burn time
Individually adjustable beam between 12 and 60 degrees on each of the light bulbs so you can use all 12 degrees, all 60 degrees, or anything in between.
300 lumen output
4-16 hour burn time
12 degree beam (can be softened using an external diffuser)