--- product_id: 338500344 title: "Mr Beams, Brown MB520 Wirelsss Battery-Operated Indoor/Outdoor Motion-Sensing LED Step/Stair Light, 1-Pack" brand: "mr beams" price: "FREE" currency: JPY in_stock: false url: https://www.desertcart.jp/products/338500344-mr-beams-brown-mb520-wirelsss-battery-operated-indoor-outdoor-motion store_origin: JP region: Japan --- # 12 ft motion detection range 5000 activations per battery set Weatherproof & UV resistant Mr Beams, Brown MB520 Wirelsss Battery-Operated Indoor/Outdoor Motion-Sensing LED Step/Stair Light, 1-Pack **Brand:** mr beams **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > 💡 Light up your path, wire-free and worry-free! ## Quick Answers - **What is this?** Mr Beams, Brown MB520 Wirelsss Battery-Operated Indoor/Outdoor Motion-Sensing LED Step/Stair Light, 1-Pack by mr beams - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/338500344-mr-beams-brown-mb520-wirelsss-battery-operated-indoor-outdoor-motion) ## Best For - mr beams enthusiasts ## Why This Product - Trusted mr beams brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-Weather Durability:** Built tough with weatherproof, UV-resistant housing for year-round indoor/outdoor use. - • **Long-Lasting Battery Power:** Up to 5000 activations on a single set of 3 C batteries—reliable light when you need it most. - • **Smart Motion & Light Sensor:** Activates only after dark and detects movement up to 12 feet for energy-smart illumination. - • **Bright & Focused LED Lighting:** 35 lumens of crisp white light with balanced optics to highlight steps, hallways, and outdoor paths. - • **Effortless Wireless Installation:** No wiring needed—mount anywhere in minutes and upgrade your space instantly. ## Overview The Mr. Beams MB520 is a sleek, battery-operated wireless LED step and stair light designed for both indoor and outdoor use. Featuring a built-in motion sensor with a 12-foot detection range and an auto shut-off light sensor, it delivers 35 lumens of bright white light while conserving battery life for up to 5000 activations. Its weatherproof and UV-resistant design ensures reliable, hassle-free illumination anywhere you need it. ## Description Mr. Beams Wireless Motion Sensing LED Step and Stair Light. The Wireless Motion Sensing LED Step & Stair Light from Mr. Beams is a battery-powered, wireless, motion-sensor LED step light that requires no wiring. Simply insert 3 C batteries (not included) and attach to any surface. The unit is designed such that you can mount it in a convenient location and it won't get in your way. A built-in photocell activates the motion sensor only after the sun has set or when the lights are out. These are fantastic and bright stair and wall LED lights for hallways, stairways, steps, bathrooms, bedrooms, closets, garages, attics and basements. The Wireless Motion Sensing LED Step & Stair Ligh is weatherproof for year-round illumination. Attach these lights anywhere in minutes without an electrician. Mounting options include a mounting bracket that attaches with screws. Attach a stair light anywhere: to your hallways, stairways, steps, bathrooms, bedrooms, closets, decks and more. The stair light instantly turns on when it detects motion, and can detect motion from as far as 12 feet away with 180 degrees of vision. The bright LED and housing design focus the light where you need it--perfect for wall-mounted lighting applications. In glow mode, the LED light will remain turned on at a very low light level. At the very low light level, the light serves as a marker light identifying where the edge of the stairs are, for example. When a person approaches, the motion sensor will turn the light on to a bright light output to provide more light. After the auto shut-off time in which motion has not been detected, the Wireless Motion Sensing LED Step & Stair Light will return to LED glow mode. Tight seals and weather-resistant materials allow a Mr. Beams motion sensor indoor/outdoor LED step light to work in all weather conditions. Requires 3 C Batteries - Not included. Materials: ABS Plastic Dimensions: 3.5"L x 3"W x 1.75"H Weight: 0.3125 lbs ## Features - Wireless motion sensor LED path, step, or stair lights. Battery operated. No wires-attached anywhere - Built-in light sensor with auto shut-off of 20 or 60 seconds to conserve battery life. One set of batteries will allow this LED light to have an average of 5000 activations - Light coverage of more than 120-Square feet per fiture. Perfect LED Light for hallways, stairways, steps, bathrooms, bedrooms, closets and more - Motion detection range of up to 12 feet away. Optics provide balanced LED light where you need it - Power LED provides 35 lumens of bright white LED light. Weatherproof and UV resistant housing ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Mr. Beams | | Part number | MB520 | | Item Weight | 130 g | | Product Dimensions | 10.16 x 5.08 x 8.89 cm; 130 g | | Batteries | 3 C batteries required. | | Item model number | MB520 | | Size | 1-Pack | | Color | Brown | | Style | Contemporary | | Finish | Matte | | Material | Plastic | | Shape | square | | Power source type | Battery-Powered | | Voltage | 4.5 Volts | | Item Package Quantity | 1 | | light-source-type | LED | | Luminous Flux | 35 Lumens | | Plug Profile | Surface | | Special Features | weatherproof | | Specific uses | Indoor and Outdoor | | Included components | Mr. Beams MB520 Wirelsss Battery-Operated Indoor/Outdoor Motion-Sensing LED Step/Stair Light, Brown | | Batteries Included? | No | | Batteries Required? | Yes | | Battery Cell Type | Alkaline | | Battery life | 30 Hours | ## Images ![Mr Beams, Brown MB520 Wirelsss Battery-Operated Indoor/Outdoor Motion-Sensing LED Step/Stair Light, 1-Pack - Image 1](https://m.media-amazon.com/images/I/512XbALwF3L.jpg) ![Mr Beams, Brown MB520 Wirelsss Battery-Operated Indoor/Outdoor Motion-Sensing LED Step/Stair Light, 1-Pack - Image 2](https://m.media-amazon.com/images/I/61iaUG+tlbL.jpg) ![Mr Beams, Brown MB520 Wirelsss Battery-Operated Indoor/Outdoor Motion-Sensing LED Step/Stair Light, 1-Pack - Image 3](https://m.media-amazon.com/images/I/61j6wl4g4mL.jpg) ![Mr Beams, Brown MB520 Wirelsss Battery-Operated Indoor/Outdoor Motion-Sensing LED Step/Stair Light, 1-Pack - Image 4](https://m.media-amazon.com/images/I/61wXY6tu2kL.jpg) ![Mr Beams, Brown MB520 Wirelsss Battery-Operated Indoor/Outdoor Motion-Sensing LED Step/Stair Light, 1-Pack - Image 5](https://m.media-amazon.com/images/I/61xNys+RgyL.jpg) ## Questions & Answers **Q: How low is the working temperature?** A: I live in Jefferson New Hampshire. About 50 Miles from the Canadian border. I installed one of these outside over my front door for light when I come home and have to find the key hole. It has been below 0 here and most of the winter below freezing. The light works fine out there exposed to the biter cold. **Q: Is the motion detector on this light a photocell so it won't come on when it senses light or is it just motion only all the time?** A: Comes on in dark only, with motion detection, then shuts off after a few seconds of inactivity. One exception, the glow feature which allows continuous lighting at a much lower brightness even if there's no motion/activity. **Q: Will this work through glass?** A: No motion sensor lights work through glass. The motion sensors are actually heat detectors (PIR or passive infra-red). Glass will prevent the sensor from getting a reading on the body heat. **Q: Will these work in a closet, or we they always be on because of the darkness?** A: They should work fine in a closet they only come on when there's motion and only in the dark. I have it in a dark hallway and it comes on when we come out of our bedrooms. ## Frequently Bought Together - Mr. Beams MB520 Wirelsss Battery-Operated Indoor/Outdoor Motion-Sensing LED Step/Stair Light, Brown - Duracell Plus C Batteries (6 Pack) - Alkaline 1.5V - 100% Life Guaranteed - Reliability For Everyday Devices - 0% Plastic Packaging - 10-Year Storage - MN1400 - Duracell Plus AA Batteries (12 Pack) - Alkaline 1.5V - Up To 100% Extra Life - Reliability For Everyday Devices - 0% Plastic Packaging - 10-Year Storage - LR6 MN1500 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/338500344-mr-beams-brown-mb520-wirelsss-battery-operated-indoor-outdoor-motion](https://www.desertcart.jp/products/338500344-mr-beams-brown-mb520-wirelsss-battery-operated-indoor-outdoor-motion) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-11-15*