"WHITE LIGHT" (RGB)
400mW LASER
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"White Light" (RGB) 400mW Laser, retail $135.00
Manufactured by (Unknown) for Techhood (http://stores.ebay.com/techhood)
Last updated 01-30-14
The "White Light" (RGB) 400mW Laser is exactly what you think it is...it's a "white light" (RGB) 400mW laser! 
It is a very small portable laser that does much the same as the $300,000.00 RGB laser like I saw at the California State Fair in 1982; that laser system used argon-ion and krypton-ion lasers that were so large that the installation took up the better part of a small room (such as a bathroom), required active water cooling, and used enough power to run a house.
This laser uses directly-injected laser diodes for the red & blue, and a DPSS (Diode-Pumped Solid State) laser for the green.
The connectors that feed the red, green, and blue lasers in this unit can be unplugged, so that you can isolate various colors (like red, green, blue, purple, cyan, and yellow).
This laser has power outputs of 155mW (red), 82mW (green),190mW (blue) and 465mW (white --all three lasers on simultaneously.
The wavelengths were spectrographically measured at 660.660nm (red), 532.010nm (green), and 454.700nm (blue).
SIZE
To use your spiffy new (or corroded old) "White Light" (RGB) 400mW Laser, take the included wire & connector combo (the one with red & black wires), and plug it into the shielded male receptacle on the corner nearest that large 1000µF electrolytic capacitor (the tallest component on the board; a large cylindrical (pop can-shaped) thing).
If the connector on the free end doesn't fit any 7.5 to 12 volt DC power supply you have, take a pair of dikes (the wirecutters, not the other kind! ),
snip the connector off, and strip the insulation off the two wires.
Connect the wire with the black stripe on it to the negative (-) terminal of a power source that delivers +7.5 to +12 volt DC and can comfortably sink at least 1,000mA (1 amp), and connect the red wire (without a black stripe on it or black anywhere on it for that matter) to the positive (+) terminal. In my case, I used a pair of 18650 lithium ion cells in series to get ~7.6 volts.
As soon as the power supply is energised, the laser will fire up. Be certain that the laser is not directed to your eyes (or to the eyes of any person or animal in the vicinity) and/or directed toward any flammable materials before you apply power to it.
The "White Light" (RGB) 400mW Laser is intended to be powered from an external power supply, not batteries internal to the unit, so I don't have to tell you which part to remove, load onto a stolen space shuttle and blasted to high Earth orbit, transferred over to Zephram Cochrane's ship the Phoenix, and then jump to warp with a course set to Tau Alpha C and then rather emphatically tell you not to.
Current usage measures a rather modest 961mA when powered with two series 18650 cells; my bench power supply simply doesn't have the {vulgar slang term for male nads} to sink this amount of current at +12 volts as this module is supposedly rated for its input voltage.
This is a laser, not a flashlight designed to be thrashed,bashed, trashed, and abused. So I won't try to drown it in the toliet tank, bash it against a steel rod or against the concrete floor of a carport in effort to try and expose the bare Metalmarineangemon - er - the bare Metaltrailmon - um that's not it either...the bare Metalsusanoomon...er...uh...wait a sec here...THE BARE METAL (guess I've been watching too much Digimon again! - now I'm just making {vulgar term for feces} up!!!), let my mother's big dog's ghost, her kitties, my kitty or my sister's kitty cat piddle (uranate) on it, hose it down with my mother's gun, run over it with a 450lb Quickie Pulse 6 motorised wheelchair, stomp on it, use a medium ball peen hammer in order to bash it open to check it for candiosity, fire it from the cannoñata, drop it down the top of Mt. Erupto (now I guess I've been watching the TV program "Viva Piñata" too much again - candiosity is usually checked with a laser-type device on a platform with a large readout (located at Piñata Central {aka. "Party Central"}), with a handheld wand that Langston Lickatoad uses, or with a pack-of-cards-sized device that Fergy Fudgehog uses; the cannoñata (also located at Piñata Central) is only used to shoot piñatas to piñata parties away from picturesque Piñata Island, and Mt. Erupto is an active volcano on Piñata Island), send it to the Daystrom Institute for additional analyses, or perform other indecencies on it that a flashlight might have to have performed on it. Therefore, this section of the "White Light" (RGB) 400mW Laser's web page will seem a bit more bare than this section of the web page on a page about a flashlight.
Typically, I do not perform abusive testing on any laser or product which lases.
I know you like to see me try and break things, but "ain't" "gonna" happen today folks!!!
The three beams do coalesce into a single white spot (both right at the laser aperture and farther away ) quite well -- better than I was expecting actually...but additional testing has revealed that the beams seperate quite noticeably when the laser is directed at a target ~200 feet distant.
The biggest downside to this laser is the fact that while this is clearly a CDRH Class IIIb laser (making it somewhat dangerous!!!), there are no safety features at all that are normally required in Class IIIb lasers; e.g., there is no "emissions" indicator, no startup delay, no interlock of ANY type, and no mechanical beam shutter. This laser behaves like a Class IIIa laser pointer in this regard, which I believe is a rather severe no-no!!!
Beam photograph on the test target at 12".
Beam photograph on a wall at ~8 feet.
Photograph of the laser's actual beam.
Another photograph of the laser's actual beam.
Yet another photograph of the laser's actual beam.
Note that in this photo, you can see the green beam seperate from the other two.
Yet another photograph of the laser's actual beam.
Note that in this photo (as well as the above one), you can see the green beam seperate from the other two.
Photograph of the laser's actual beam outdoors in fog.
Photo was taken at 5:29am PDT on 09-09-13 in Federal Way WA. USA.
Photograph of the laser's actual beam outdoors in fog.
Photo was taken at 6:24pm PST on 01-27-14 in Federal Way WA. USA.
Photograph of the laser's actual beam outdoors in fog while the laser was being waved about.
Photo was taken at 6:25pm PST on 01-27-14 in Federal Way WA. USA.
Beam photograph on a wall at ~55 feet to show that the laser's beams are not perfectly aligned.
Spectrographic analysis of this laser (all three colors on).
Spectrographic analysis of this laser (red), spectrometer's response narrowed to a band between 645nm and 655nm to pinpoint wavelength, which is 660.660nm.
Spectrographic analysis of this laser (green), spectrometer's response narrowed to a band between 528nm and 538nm to pinpoint wavelength, which is 532.010nm.
Spectrographic analysis of this laser (blue), spectrometer's response narrowed to a band between 450nm and 460nm to pinpoint wavelength, which is 454.700nm.
The raw spectrometer data (comma-delimited that can be loaded into Excel) is at http://ledmuseum.candlepower.us/42/rgbw.txt
USB2000 Spectrometer graciously donated by P.L.
Beam cross-sectional analysis (fast axis {X-axis}).
Beam cross-sectional analysis (slow axis {Y-axis}).
Those spots in the beams in both analyses are artifacts from the lens used to diverge the beams.
Images made using the ProMetric System by Radiant Imaging.
Power output (red laser only) peaks at 155mW.
Power output (green laser only) peaks at 82mW.
Power output (blue laser only) peaks at 190mW.
Power output (all lasers on) peaks at 449mW.
Power output (all lasers on) peaks at 450mW -- known freshly charged batteries were used for this test.
The laser was allowed to warm up for 205 seconds.
Power output (all lasers on) peaks at 461mW -- again, known freshly charged batteries were used for this test.
The laser was allowed to warm up for 230 seconds.
Power output (all lasers on) peaks at 465mW -- again, known freshly charged batteries were used for this test.
This measurement was conducted on 09-09-13.
Short-term (600 seconds {10 minutes}) stability analysis.
All analyses were conducted on a LaserBee 2.5W USB Laser Power Meter w/Thermopile.
TEST NOTES:
Test unit was purchased on Ebay on 04-09-13 and was received at 11:32am PST on 04-22-13
UPDATE: 04-25-13
I took it outside for a little distance test...the results aren't good here folks!
At approx. 200 feet, the beams were very clearly seperated -- I did not at all expect to see this considering how well the beams stayed coalesced into a white spot at indoor distances.
As a result, a star is coming off its rating.
PROS:
Compact size & shape
Operates from low voltage DC
NEUTRAL:
CONS:
No safety features required of a CDRH Class IIIb laser -- there goes one star
"White" (all three beams combined) beam 'comes apart' at distance -- and ***POOF!!!*** there goes another!
MANUFACTURER: Unknown
PRODUCT TYPE: RGB ("white light") laser
LAMP TYPE: Laser diodes (R & B directly injected; G is DPSS)
No. OF LAMPS: 3
BEAM TYPE: Extremely narrow spot
SWITCH TYPE: N/A
CASE MATERIAL: Metal & fiberglass
BEZEL: Metal; lasers recessed into a hosel for them
BATTERY: N/A
CURRENT CONSUMPTION: 961mA when powered with two series 18650 cells
WATER- AND URANATION-RESISTANT: No
SUBMERSIBLE: ¡¡¡EL DIABLO USA PAÑALES LLENO DE MIERDA!!! 
ACCESSORIES: Two small cords terminated in two-pin female connectors
SIZE: 80mm L x 41mm W x 81mm H
WEIGHT: 521.00g (18.380 oz.)
COUNTRY OF MANUFACTURE: Unknown/not stated; possibly China
WARRANTY: Unknown/not stated
PRODUCT RATING:
"White Light" (RGB) 400mW Laser *
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