Metalsub USA
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ianr33:I have never heard of anybody using another HID as a backup. If you are in an overhead environment a small backup light should be more than adequate to follow the guideline out . Your buddy should have an HID as well.
Of course,should you be soloing overhead environments with no guideline then you might need a spare HID..............
Hello Ianr33,
I solo dive easy shipwrecks with no penetration and also solo dive night lake shore dives. Since I already had the Light Cannon 100 I take it with, that said, when I buddy dive I just take the SL4 as a backup. It is nice to K.I.S.S. and keep it lightweight.
I will soon be selling the ligh cannon because the Metalsub XL7.2 Handheld light with 15 Watt LED head will be ready for shipment this week and after I get my first demo unit, I will dive with it as my backup. The 15 Watt LED head will be brighter that a 10 Watt HID, by about 200 Lumens and at the same 6000° K it will be awesome underwater. See the photo below: