Shadow-Caster Underwater LED's Group Buy

[chpthril]

Time for a highjack. anyone know of any planned impeller group buys? Otherwise, I'll order one on my own.

Send a PM to SPBFan, he can get those for Merc, PCM, and MP

[chpthril]

Hay guys, no waiting around with unanswered questions, no need to call or email, I'm monitoring my thread closely

[Krunchytaco]

What a let down...I thought these would be affordable!

[chpthril]

What a let down...I thought these would be affordable!

Sorry that these did not meet your expectations.

Affordable is a term that can have a different meaning depending on ones perspective, perceived value/need of an item, as well as other factors. Yes, these light are expensive by most peoples definition, but keep in mind the performance and quality of these lights, compared to the competition.

I'm not offended at all if someone chose to go with the cheaper lights.

[Krunchytaco]

If I could afford to spend that kind of money on aux lighting, I would seriously consider these. They look awesome!
But my god!! That is alot of money for LED's. Ouch.

[jake]

the only loser here is you!!!!!!!!!!!

I'd like to see the ASTM B117 and G31 results.

This way I'll know how serious the mfg is about their product.

[mneal]

Huh? You want proof of 316 SS for corrosion resistance? If I thought you were smart enough to understand I could teach you something about material science.

So now CHP is "trustworthy" person and these meet you high expectations and therefore you would bless your boat with some? Whatever, you are an an as*clown.

Add something other than just piling poo on threads every once in a while and people will like you more.

I'd like to see the ASTM B117 and G31 results.

This way I'll know how serious the mfg is about their product.

[TRD]

Here you go Jake, Does this help? The environment that 3 of these folks have there boats in is the best corrosion test there is. REAL LIFE, intercoastal ocean water ways and bays areas. I boated in these areas most of my earlier years.

Titre du document / Document title
Corrosion resistance study of argon implanted and ion-beam-mixed 316 SS
Auteur(s) / Author(s)
PATIL S. S. (1) ; FERNANDES R. P. (1) ; PATEL N. K. (1) ; RAYJADA P. A. (2) ; RAOLE P. M. (2) ; KOTHARI D. C. (1) ;
Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)
(1) Departmmt of Physics, University of Mumbai, Vidyanagari, Suntacruz East, Mumbai 400 098, INDE
(2) FCIPT, Institule et Plasma Reseurch, B-15-17/P Sector-25, GIDC Electronic Estate, Gandhi Nugar 382 044, INDE

Résumé / Abstract
The objective of the present work is to study and develop a suitable structural material for the Accelerator Driven Subcritical System (ADSS), which can withstand extreme conditions of irradiation in corrosive environment. Effects of radiation damage on corrosion resistance are evaluated and a possible solution is attempted by adding alloying elements such as Al or Si. Aqueous corrosion studies were carried out in 0.5 N H2SO4 solution on 316 SS, Ar+ implanted 316 SS, Al ion-beam-mixed 316 SS and Si ion-beam-mixed 316 SS. At a low dose 30 keV Ar' implantation, the martensitic phase transformation was observed in 316 SS. Corrosion potential reduced to very low negative values after Ar' implantation, indicating the reduction in corrosion resistance. As the dose was increased further, the corrosion resistance marginally improved. This correlates with the reduction in martensitic phase, as observed using glancing angle X-ray diffraction (GXRD). Si ion-beam-mixed 316 SS displayed good corrosion resistance with higher corrosion potential, higher pitting potential and large passive region, whereas Al ion-beam-mixed 316 SS displayed no passive region but had a higher corrosion potential.
Revue / Journal Title
Surface & coatings technology ISSN 0257-8972 CODEN SCTEEJ
Source / Source
Congrès
SMMIB-13 International Conference on Surface Modification of Materials by Ion Beams No13, San Antonio, TX , ETATS-UNIS (21/09/2003)
2005, vol. 196, no 1-3 (423 p.) [Document : 4 p.] (11 ref.), pp. 284-287 [4 page(s) (article)]
Langue / Language
Anglais

Editeur / Publisher
Elsevier, Lausanne, SUISSE (1986) (Revue)

Mots-clés anglais / English Keywords
Ion beam mixing ; Stainless steel-316 ; Austenitic stainless steel ; Ion beam ; Surface treatments ; Ion implantation ; Ion irradiation ; Corrosion ; Corrosion resistance ;
Mots-clés français / French Keywords
Mélange ionique ; Acier inoxydable 316 ; Acier inoxydable austénitique ; Faisceau ionique ; Traitement surface ; Implantation ion ; Irradiation ion ; Corrosion ; Résistance corrosion ;
Mots-clés espagnols / Spanish Keywords
Haz iónico ; Irradiación ión ;
Mots-clés d'auteur / Author Keywords
61.80 Corrosion resistance ; Ion beam mixing ; Ion implantation ; Potentiodynamic ; Polarization ; 316 SS ;
Localisation / Location
INIST-CNRS, Cote INIST : 15987, 35400012458353.0560


Copyright 2008 INIST-CNRS. All rights reserved

Toute reproduction ou diffusion même partielle, par quelque procédé ou sur tout support que ce soit, ne pourra être faite sans l'accord préalable écrit de l'INIST-CNRS.
No part of these records may be reproduced of distributed, in any form or by any means, without the prior written permission of INIST-CNRS.

Nº notice refdoc (ud4) : 16833452

[TRD]

Here is a 2nd report. W/out posting the entire thing here is the link and topics covered. Corrision is one of them.

http://www.azom.com/details.asp?ArticleID=863

Stainless Steel - Grade 316 – Properties, Fabrication and Applications
Chemical Formula
Fe, <0.03% C, 16-18.5% Cr, 10-14% Ni, 2-3% Mo, <2% Mn, <1% Si, <0.045% P, <0.03% S

Topics Covered
Background

Key Properties

Composition

Mechanical Properties

Physical Properties

Grade Specification Comparison

Possible Alternative Grades

Corrosion Resistance

Heat Resistance

Heat Treatment

Welding

Machining

Dual Certification

Applications

[gstauffer]

What TRD posted and this: "E=mc2" should get you where you need to go

[TRD]

What TRD posted and this: "E=mc2" should get you where you need to go

Now that is funny.

What else is funny I had time to scan through my overtons cat. and seen some under water lights in there made of 316 SS. I really don't understand what the complaint is. This mat'l should hold up fine. We use all kinds of SS here, I don't see the problem. I guess after looking at my first post that really wasn't fair, not many people would understand some of that so that is why the 2nd post. Sorry.

[jfpound]

Wow guys... impressive amount of discussion. I'm Jeff, I did the mechanical design on the Shadow-Caster product. We were at the Miami Boat show this past weekend showing off the lights. We talked to tons of people. Anyone that's done any shopping for underwater transom lights loves our product. No, they're not cheap and there are plenty of reasons for that. However anyone that compares them side by side to the competing products makes the same decision. Our product is the best bang for the buck you can get right now. And I'm only talking about brightness, forget the robust mechanical design, non-invasive easy installation, and best warranty you'll find on this type of product. I participated in several night time Christmas boat parades in december and surveyed all the boats with transom lights. The Shadow-Casters were by far the best of show. Boats with four lights of other brands don't look as good as boats with just two Shadow-Casters. I guess you've gotta see'm to appreciate'm. I'd be glad to answer any questions, shoot'm if you've got'm.

[jfpound]

Web page....
www.shadow-caster.com

[MoneyPity]

After browsing the specs one thing caught my eye that sets this product above the others. The product uses a built in switching power supply to take the boat variable dc voltage and converts it to a constant DC voltage to feed the LED's. The design of a switching power supply is reasonable for an experienced EE and will add longetivity to the product as well as consistemt light intensity. If the say 40,000 hour lifetime this will not affect by your alternators outout.

If you have read the other thread on the Bullet line product you will notice that the LED output and life will vary depending on the input voltage feeding them.

In my The shadow casters appear to be a well designed unit built to with stand severe conditions. In a way they may be over engineered but will most likely outlast the boat and maybe even the owner

Because of the high level of design and engineering these most defintely will cost more than the Bullet Line. I would like to see a bullet line light before purchasing but would not hesitate on The Shadwocaster line.

ShadowCaster may want to look at another lower cost product re-using the housing design but simpifying the electronics so that at the lower price point of competitors they are not priced out of the freshwater only market.

[jake]

Huh? Whatever, you are an an as*clown.

Add something other than just piling poo on threads every once in a while and people will like you more.

Why do I need people to like me more?