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Somebody set up us the bomb.

LavNav™ Toliet Nightlight (2), retail $11.95 (
Manufactured by Shanghai Industries Co., Ltd. (
Last updated 01-31-14

The LavNav™ Toliet Nightlight ("LavNav" stands for "Lavatory Navigation") is an ingenious device that attaches to your toliet seat lid with double-sided tape (no tools necessary), and serves two functions: it senses your approach to the commode in the dark and acts as a nightlight so you can find the {vulgar slang term for feces}bowl, and lets you know if the seat is up or down.

It senses your approach in the dark with a PIR (passive infrared) sensor, lights up the toliet bowl, and indicates the status of the seat with bright green LEDs or a bright red LED.

Green means the seat is down; red means the seat is up.

The entire unit operates from two AA cells that you supply yourself.


Feed your new LavNav™ two AA cells that you supply (see directly below), and then you'll be ready to light up that pesky toliet bowl.

On the back of the LavNav™, there is a generous piece of double-sided foam tape. Take the unit to your bathroom, and remove the paper covering from this tape. Lift both the toliet lid and seat up. Position the LavNav™ at the top of the toliet lid, so the sensor (the black object on the top of the LavNav™) is at the top, and is covered by the front edge of the toliet seat. Press the unit firmly in place, and there, you're finished.

The LavNav™ is designed so that it only works in the dark. So please don't be surprised if it does not appear to function when you first install it.

To change the batteries in your LavNav™ (while it's mounted), put the toliet seat down (assuming it's not already down), slide the unit to the left until it stops, then lift it straight off the base.

Remove the two used AA cells from the LavNav™, and dispose of or recycle them as you see fit. Use the garbage can; even though the toliet bowl is right there, please do not attempt to dispose of the used AA cells by flushing.

Insert two new AA cells in the chambers, flat-end (-) negative of each cell facing the spring for it in each chamber.

Place the LavNav™ over its base, so it is approximately 0.25" to the left of the base. Press it on, and slide it to the right until it stops.

Aren't you glad you didn't flush that...o wait, I didn't advise flushing anything away, did I?

The LavNav™ does not come with batteries; you'll have to either have them on hand or go buy some.

This is a nightlight designed to be affixed to your commode, not a flashlight meant to be thrashed, 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 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 cannońata, drop it down the top of Mt. Erupto (now I guess I've been watching the TV program "Viva Pińata" too much again - candiosity is usually checked with a laser-type device on a platform with a large readout (located at Pińata 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 cannońata (also located at Pińata Central) is only used to shoot pińatas to pińata parties away from picturesque Pińata Island, and Mt. Erupto is an active volcano on Pińata 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 LavNav™'s web page will seem a bit more bare than this section of the web page on a page about a flashlight.

The LavNav™ will not function properly if your commode has a horseshoe type seat.

Does this evaluation look an awful lot like the one that I attempted to write for this product?
Thought that you'd say so.
That's because the two products are extremely similar both in appearance & functionality (they may in fact be the same product except that this one is a whole lot newer), so I was able to use its eval. as a template for this one.

Photo showing how the product is properly affixed to your loo.

Photograph showing the unit activated when the toliet seat is up (red light).

Photograph showing the unit activated when the toliet seat is down (green light).

Spectrographic analysis
Spectrographic analysis of the red "seat up" LED in this product.

Spectrographic analysis
Spectrographic analysis of the red "seat up" LED in this product; spectrometer's response narrowed to a band between 625nm and 635nm to pinpoint peak wavelength, which is 628.670nm.

The raw spectrometer data (tab-delimited that can be loaded into Excel) is at

Spectrographic analysis
Spectrographic analysis of the green "seat down" LEDs in this product.

Spectrographic analysis
Spectrographic analysis of the green "seat down" LEDs in this product; spectrometer's response narrowed to a band between 510nm and 530nm to pinpoint peak wavelength, which is 520.980nm.

The raw spectrometer data (tab-delimited that can be loaded into Excel) is at

USB2000 Spectrometer graciously donated by P.L.

Video on YourTube showing the LavNav™ sensing my approach to the water closet and lighting to indicate both "seat up" and "seat down" status.

O boy, a light changing colors!
So thrilling!!
So pulse-racing!!!
Actually, it kinda makes you want to kick over one of those Penal-Ware® suicide-resistant prison combys and then proceed to "bete" "thuh" "livengg" "tweadle" "owt" "uv" "itt" "withh" "uh" "noo "toylet" "brusch" doesn't it?

This video is approximately 557.1773226932 megabytes (557,849,474 bytes) in length; dial-up users please be aware.
It will take no less than two thousand seven hundred eighty five (!) minutes to load at 48.0Kbps.
This video is definitely ***NOT*** dial-up friendly!!!

Test unit was purchased on Ebay on 01-18-14, and was received on 01-28-14.

UPDATE: 00-00-00

Very unique use of LED technology
Uses batteries that are relatively inexpensive & readily available
Automatic switching - no switches to fuss with or forget


Cannot be used on toliets with a horseshoe (open-front) seat

    PRODUCT TYPE: Automatic nightlight/toliet seat status indicator
    No. OF LAMPS: 3 (2x 5mm green, 1x 10mm red)
    BEAM TYPE: Varies, depending on seat status
    REFLECTOR TYPE: None present
    SWITCH TYPE: Photoelectric/PIR sensor
    BEZEL: Plastic; LEDs protected by plastic window
    BATTERY: 2x AA cells
    WATER- AND PEE-RESISTANT: Splash-resistant
    ACCESSORIES: Double-sided tape
    SIZE: 87mm L x 74mm W x 24mm D incl. tape
    WEIGHT: 97.20g (3.420 oz) incl. batteries
    WARRANTY: Unknown/not stated


    Star Rating

LavNav™ Toliet Nightlight (2) *

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