My New Canister Light

[Johnbhutch]

P7 Canister light all white by my choice

Light Cannon Beam Shot

P7 Canister light Beam Shot

Ok so I got my new canister light is the mail yesterday 12 minutes AFTER I left for Redondo and thought I would share some pictures of it with everyone. The 2 beam shots are comparing it with Bassman's Light Cannon. The head is solid Aluminum and the can is natural delrin. Same as the black minus the dye they use to turn it black. I decided on all white since it was custom made. It may not be DIR but it is sexy AND it is all mine! Has a 4.5-5 hour burn time off the battery it came with and it did come with a charger.

[DiverBob]

Nice light John, bet you are excited to dive it! Who made it? Lumins?

[Johnbhutch]

Was made by a guy in Texas that makes custom lights I have his contact info if you are interested. Oh and a P7 will put out 900 lumens according to the company that manufactures them.

[H20doctor]

How about a beam shot against Bassmans Big Bertha ... Looks Nice .. congrats

[Mattleycrue76]

Looks real nice. So the head is machined from aluminum and anodized white? Or is it painted? I can't tell from the picture. Bet you can't wait to get it wet.

[Dusty2]

Looks great, we're all waiting to hear more. Price range??

[sheahanmcculla]

Cave diver forum name: 350xfire $400-$600 I think. He makes sweet cans for $150 too. He is on almost every board but ours.

[Johnbhutch]

Powder Coated, and it was $450 I am sure Bassmans Big Bertha is brighter but it has nothing on the sexy factor. Not to mention I could pound a maglight flat and need nothing more then a new powder coating. Not saying hi light is not nice. It is very nice I just like mine better.

[Johnbhutch]

Cave diver forum name: 350xfire $400-$600 I think. He makes sweet cans for $150 too. He is on almost every board but ours.

Thats him, I found him on Scubaboard I have his email if anyone would like it.

[ktb]

900 lumens for $450? Really? Is that LED or HID?

[pogiguy05]

Nice light John and just like you said probably came right after you left.

[Nwbrewer]

900 lumens for $450? Really? Is that LED or HID?

LED it's a Seoul P7. It depends on which Bin he got, it's between 500 and 900 lumens. I use the same LED in my light, it's brighter then a 10watt HID at full power.

[H20doctor]

Yes its Dam sexy .. I look foreward to seeing it In action at a thursday Night S end dive

[airsix]

Nice light! Not DIR? If it isn't then nothing is!

[Johnbhutch]

I say not DIR due to the color, I was making a poor joke referring to some of the guys that get all eaten up about everything having to be all black or it is not DIR. Every crowd has its extremes.

[Johnbhutch]

Ok did 4 Dives without recharging and still has not started to dim. Was diving the other night with KTB she was using Derricks AquaSun. Now according to Geek her light was brighter. He was Rogers Buddy and was little farther away. I would have to say that the new canister light has a better beam up close wider with more spill and just as bright up close but does not have the throw of the AquaSun. All in all I would have to say it was well worth $450 it is Very bright and has a very long burn time.

[oregondiver]

not that I need a second light (ahem!)...but if my husband likes diving (we find out this weekend)...then maybe I need to get one of these for him. THanks for posting!

[spatman]

Ok did 4 Dives without recharging and still has not started to dim.

i'm certainly no expert, but i don't think LEDs dim. they just quit.

[cardiver]

Ok did 4 Dives without recharging and still has not started to dim.

i'm certainly no expert, but i don't think LEDs dim. they just quit.

Shhhh!

[Nwbrewer]

Ok did 4 Dives without recharging and still has not started to dim.

i'm certainly no expert, but i don't think LEDs dim. they just quit.

It depends on how they are driven. If it's direct drive, or is just voltage limited, it will taper off pretty much forever. You can get a faint glow out of one with just a few mA. At this point though, you're doing damage to your battery. Li-ion packs **SHOULD** have a voltage cutoff switch in them so that they cannot be overdrained. In this event the LED will just quit, but that's a function of the battery, not the LED.

Lots of LED's are driven by one type or another of constant current drive circuit. These may just cut out when they reach a minimum current, or if they have drive levels, (mine does) they will drop to a lower power level when the voltage drops to some pre-set level. (This is what mine does)

I don't know the specifics of John's light, so I'm not sure how it will cut out, but I believe it's using li-ions, so at some point it should hit the battery cutoff voltage and just quit.

Jake

[spatman]

thanks for the clarification, jake.

[airsix]

Jake's explanation illustrates why the LED backup lights have such insane burn times. They are direct driven off the batteries and gradually dim over many hours. You'll still be getting light at 10 hours, but it may only be 10% of what it was at hour 1. At hour 20 it may still produce some light, but it won't be much.

On the other hand the primary lights with a current-limiting driver circuit keep the brightness at 100% for the entire rated burn-time. Then as battery power drops off it switches to a lower output level (suddenly, not gradually) or in the case of single-mode drivers it would just shut off.

I hope that's useful and not just a poorly worded restate of what Jake wrote.

-Ben

[Johnbhutch]

It is direct drive with a PCB in the battery. It is a 11 amp battery so it has a bit of life to it.

[no excuses]

look forward to seeing it in person tomorrow

[2loud4u]

Cave diver forum name: 350xfire $400-$600 I think. He makes sweet cans for $150 too. He is on almost every board but ours.

Thats him, I found him on Scubaboard I have his email if anyone would like it.

I would be interested in his contact info please. I am in need of a new light, and want to get some info from him.


Brendan