Any interest in a 5x P7-Based Worklight? New Pictures !

I have, in my hands, a 250w Halogen worklight that i intend to modify.
It is from here:
http://www.lowes.com/lowes/lkn?action=productDetail&productId=246900-52757-WL250CL4-L&lpage=none
and will include a stand..

Sooo, here some pics of a prototype that i should have ready by this
weekend for sale... hopefully someone will be interested.
The Bronze-Colored bar inside is where the leds will be mounted.
It is held in place with 2x screws through the backside, and
thermally connected with Arctic Silver 3 paste.






This project may turn into a real production run if i can make it happen

I was going to install 5x P7 CSWOI Emitters with a Custom Reflector,
and mount a heatsink on the back to keep the temps down.
Figuring 5x P7's with at least 700 lumens comes to:
3500 Lumens!!!:devil:


An AC adapter for 110-220v use is included.

I would like opinions before ordering a buttload of P7's

I am still working on a battery pack option

Any interest?

Robert M.

Re: Any interest in a 5x P7-Based Worklight?

Hmmm

No Takers, Huh? :candle:

Re: Any interest in a 5x P7-Based Worklight?

Sound nice but as always on here, pictures of an actual working unit would stir more interest. What kind of driver are you using? Whats the total current draw on DC? Is the beam spot, flood or both? Can it run indefinitely or will heat be an issue? Good luck and thanks for the neat idea!:thumbsup:

Re: Any interest in a 5x P7-Based Worklight?

I agree. Build one and post it here: Homemade and Modified lights

ambientmind said:

Sound nice but as always on here, pictures of an actual working unit would stir more interest. What kind of driver are you using? Whats the total current draw on DC? Is the beam spot, flood or both? Can it run indefinitely or will heat be an issue? Good luck and thanks for the neat idea!:thumbsup:

Click to expand...

Re: Any interest in a 5x P7-Based Worklight?

ambientmind said:

Sound nice but as always on here,
#1 pictures of an actual working unit would stir more interest.

#2 What kind of driver are you using?

#3 Whats the total current draw on DC?

#4 Is the beam spot, flood or both?

#5 Can it run indefinitely or will heat be an issue?

Good luck and thanks for the neat idea!:thumbsup:

Click to expand...

#1 I would need to purchase the parts, but i need to know if
there is an interest first.. I don't quite have enough of a
turnaround on my sales to invest in this project just yet.

#2,3 It would be direct-draw from a current-matched
power supply of around 3 amps. I would be running the
leds in series at around 17 volts.

#4 It would be a combination of Flood and Beam.
I wanted as wide of a beam as possible, hence,
a worklight. But, i also wanted a bit of a spot
to concentrate the light a bit.
Does anyone have an idea of what would be best?
Howsabout a line of leds down the center of the light
running horizontally, with the 2 outer ones sporting
a spot-type reflector.:candle:

#5 It will run Indefinately No heat buildup
or thermal runaway.

Robert M.

I can work on the price, and possible mass-produce these to
bring the cost down a bit. Maybee a Group-Buy

Re: Any interest in a 5x P7-Based Worklight?

Just to let you know that PhotonFanatic is now selling DSWOJ emitters, which might be superior to the CSWOIs you have in mind.

(This is just in case you decide to order more)

I think its a good idea but I don't want to register interest because I don't know if I would commit to one.

I'd certainly like to have some idea of what it might look like, maybe a CAD drawing would help?

I was wondering whether this could be used in the kitchen as underlighting
(ie underneath the upper cabinets to light up the worktops independently of
the other lights.

Re: Any interest in a 5x P7-Based Worklight?

easilyled said:

Just to let you know that PhotonFanatic is now selling DSWOJ emitters, which might be superior to the CSWOIs you have in mind.

(This is just in case you decide to order more)

I think its a good idea but I don't want to register interest because I don't know if I would commit to one.

I'd certainly like to have some idea of what it might look like, maybe a CAD drawing would help?

I was wondering whether this could be used in the kitchen as underlighting
(ie underneath the upper cabinets to light up the worktops independently of
the other lights.

Click to expand...

Thank you for the info

Re: Any interest in a 5x P7-Based Worklight?

I'd be interested.

Re: Any interest in a 5x P7-Based Worklight?

I have a 500w equivalent of that light, and the bulb is rated at 9000 lumens. Can't see the point of this mod UNLESS there's a battery pack installed for portability.

Re: Any interest in a 5x P7-Based Worklight?

Dodge said:

I have a 500w equivalent of that light, and the bulb is rated at 9000 lumens. Can't see the point of this mod UNLESS there's a battery pack installed for portability.

Click to expand...

The point is that the leds last for many lifetimes and don't need replacing as
well as being much more efficient than halogens. (hence environmentally friendly)

I think its a huge advantage not to have to replace bulbs continuously.

Re: Any interest in a 5x P7-Based Worklight?

Pardon my ignorance, but what is a P7?

grumfan

Re: Any interest in a 5x P7-Based Worklight?

I'd be interested in a multi-P7 driven by the Milwaukee V28 LiIon battery.

Using a large LiIon pack (like an 18v or 28v) lets the battery become the base of the light. From there, a number of Loc Lines enclose the wiring to the P7 heads.

Re: Any interest in a 5x P7-Based Worklight?

Okay, I am going to order about 10x P7's for this, and other
lights to build.

Stay Tuned :twothumbs

Re: Any interest in a 5x P7-Based Worklight?

precisionworks said:

I'd be interested in a multi-P7 driven by the Milwaukee V28 LiIon battery.

Using a large LiIon pack (like an 18v or 28v) lets the battery become the base of the light. From there, a number of Loc Lines enclose the wiring to the P7 heads.

Click to expand...

I will have to come up with a special driver for this..
Any suggestions on who to talk to?

Re: Any interest in a 5x P7-Based Worklight?

grumfan said:

Pardon my ignorance, but what is a P7?

grumfan

Click to expand...

A P7 is a 4-Die based high power led.
Meaning that there are 4 seperate Leds in on package.
It is capable of outputting from 400-1000 lumens depending
on the particular model you get.

Re: Any interest in a 5x P7-Based Worklight?

easilyled said:

The point is that the leds last for many lifetimes and don't need replacing as
well as being much more efficient than halogens. (hence environmentally friendly)

I think its a huge advantage not to have to replace bulbs continuously.

Click to expand...

Thank You :naughty:

Re: Any interest in a 5x P7-Based Worklight?

Feelers are not allowed, so I've edited your post #1, and I'll move it from B/S/T to Homemade and Modified.

Re: Any interest in a 5x P7-Based Worklight?

Sabrewolf said:

A P7 is a 4-Die based high power led.
Meaning that there are 4 seperate Leds in on package.
It is capable of outputting from 400-1000 lumens depending
on the particular model you get.

Click to expand...

Heh, Interesting how far off I was. I was expecting a P7 to be a designation for some specifically size and power of bulb assembly (where bulb could be either LED or incandescent), Show how much I have to learn!

Sabrewolf Any idea how a term with the number 7 in it came to mean a package with four LED's ? (Or Anyone who feels like answering )

Also - any suggestions on articles or web sites that I could read to aquire all the Flashlight specific vocabulary you folks use here? (Even wikiopedia (WP) is coming up short in this area, and WP usually is very good at niche technology vocabulary!)

Thanks for the explanation!

Re: Any interest in a 5x P7-Based Worklight?

I think the number 7 comes from the average lumen output you get...700...in short -> 7

Regards,,,

Re: Any interest in a 5x P7-Based Worklight?

Hey Sabrewolf:

I've converted several work lights to LED. Pictured below is an early version with a mishmash of Q5s and P7s.

Heat is going to be a real concern in your design. Make sure you have a way of getting it out of the light body. Avoiding thermal runaway is A LOT harder than it looks. Then again I'm running more lights and have linear regulators onboard adding to the heat load.

Good luck!