The X-Adventurer M4000 Dive Torch is a great compact 4000 lumen torch with a 12 degree beam angle. 

This torch has 3 levels of brightness and 4 battery indicator lights. On full power (4000 lumens) it can burn for up to 90 minutes. It has an easy to use push button and anti-corrosive aluminium alloy body. It is lightweight yet still rated with a 100 metre depth rating. 

This torch comes with USB battery charger, wrist lanyard and spare O-rings.