Defiant 180 Degree Outdoor Motion Activated White LED Security Floodlight-MST18920LWDF - The Home Depot
Message to Our Customers


Model # MST18920LWDF

Internet # 203303763

Store SKU # 625057

180 Degree Outdoor Motion Activated White LED Security Floodlight

Defiant 180 Degree Outdoor Motion Activated White LED Security Floodlight

This item has been discontinued.
The Home Depot no longer carries this specific product.

$79.97 / each


Model # MST18920LWDF

Internet # 203303763

Store SKU # 625057

Dependable security protection. Projects a bright 1900 Lumens with a 180 degree, 70 ft. range of protection. An integral dusk to dawn sensor ensures lights only come on after dark.

  • Tool less head adjustment
  • Adjustable arm for aiming sensor
  • Long life LEDs with precision optics
  • Estimated life of 32 years based on 3 hrs per day
  • 1900 Lumens, 5000K, 70 CRI
  • Home Depot Protection Plan:

    Home Depot Protection Plan

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.


Assembled Depth (in.) 
6 in 
Assembled Height (in.) 
7 in 
Assembled Width (in.) 
8.5 in 
Product Height (in.) 
Product Length (in.) 
Product Width (in.) 
Actual Color Temperature (K) 
Adjustable Detection Sensitivity 
Adjustable Lamp Head 
Bulb Type 
Bulb(s) Included 
Color Rendering Index 
Color Temperature 
Detection Range (ft.) 
Dusk to Dawn 
Exterior Lighting Accessory Type 
Flood Lights 
Exterior Lighting Product Type 
Flood and Spot Lights 
Fixture Color/Finish 
Glass/Lens Type 
Light Bulb Base Code 
Light Output (lumens) 
Light Source 
Motion Sensing 
Number of Bulbs Required 
Outdoor Lighting Features 
Adjustable Lamp Head,Dusk to Dawn,Weather Resistant 
Power Type 
Product Weight (lb.) 
3.5 lb 
Range of Motion 
Timer Included 
UL Listing 
1-UL Listed 
Wattage (watts) 
25 W 
Weather Resistant 
Warranty / Certifications
Certifications and Listings 
1-UL Listed 
ENERGY STAR Certified 
Manufacturer Warranty 
5 year 


Rated 2.3 out of 5 by 76 reviewers.
Rated 2.0 out of 5.0 by selling same light but two models (one defective & one re-engineered) I bought two of these lights and installed them 20ft up on the outside of a big RV garage. They seemed well made and the installation was fairly easy providing you know what you are doing. I was so impressed that I went online to see if HD had two more to buy. I was shocked when I read all the negative comments about how poor the sensor is and how it turns on during the daytime. I then looked outside and sure enough one of the lights was turning on and off in the sunlight. There is no sensitivity adjustment. What upset me more was that HD is selling the same light at the same price but with a different sensor that looks like it has been upgraded and they are also selling the version that gives problems. Suggest you buy the online version with a different sensor SKU # 624956. October 6, 2014
Rated 2.0 out of 5.0 by I should have read the reviews This is a pricey product - probably because of the LED lights. I had an electrician install it over my driveway in the daytime because he had to run cable through my attic. Once he left and I tested it at dusk, I found it was VERY bright. Be aware. I mean construction-workers-working-at-night bright. Fortunately my neighbors told me they love it, as they only have a bathroom window on that side and it was previously very dark, and my driveway offers an access point to that window. I've noticed the product is "testy" - light activates for apparently no reason. It initially stayed on for the time I proposed - about 6 minutes,but kept coming on. I went out and I notice it did not come on until I was almost under it. But then it would come on when cars would drive by. Because it was so bright, I wanted to decrease the time and re-angle the lights more inward toward the house. I should have left well enough alone, because now that I've done that, it worked for one night , but now has stopped working altogether. Last night i waved a broom at the sensor- nothing. I"m sure I have it less than 12 ft from the ground per the instructions. I'm thinking of returning it after I troubleshoot and take one last trip up the ladder. If it's dead, I'll be returning it. I've only had the product for a week. For the cost, a light intensity adjustment would be nice, as well as caulk, which they tell you after you open the box is "sold separately". April 27, 2015
Rated 5.0 out of 5.0 by Great replacement for old Flood Light I am very happy I purchased this LED light. It is very bright and well constructed. It was very easy to install and works great. I am so glad I will not be buying the old Flood Lamps for replacement any longer. April 3, 2015
Rated 5.0 out of 5.0 by Nice and bright light I see allot of complaints about the brightness and that it stays on at night but it doesn't stay on all night. There is no sensitivity of the light but it works fine from a distance of 50 feet. It is well built and solid which replaced my older halogen lights. The LED's save allot of energy and I have mine set for roughly 7 minutes after motion is detected of staying on. These lights are bright and they light up my driveway and most of my back yard when they detect motion. I highly recommend if you are looking for something bright enough for security or when family is leaving at night because it provides for their safety so they don't fall. This light will not probably work if you don't have a big driveway or yard like in one of those sub divisions where you can see your neighbor going to the bathroom. I have roughly 3/4 acre lot size May 17, 2015
Rated 1.0 out of 5.0 by Bought on monday,returned on Tuesday! Get the Lithonia instead! Like everybody else, light comes on for no reason, no sensitivity adjustment, Also, the mount is way to big around for the standard j boxes requires a full tube of silicon to fill the gap, and its too heavy and doesn't mount flush...Bought the $100 Lithonia model OFL 2RH WAY better, acutally mounts correctly and waterproof with no silicon needed, has sensitivity adjustment, ect... February 27, 2015
Rated 1.0 out of 5.0 by Sensor fills with rainwater Stopped working after two thunderstorms. Took the sensor down and took it apart - the electronics are drenched. It's a critical design flaw. It's possible that there is a gasket missing that would keep the water out if it were there. I replaced the sensor - as suggested by another reviewer - and I'm now enjoying the light. June 19, 2014
Rated 1.0 out of 5.0 by Complete Junk This product is complete junk. It stays on when it should be off, and does not work at night, even when you wave your hand in front of it. May 2, 2015
Rated 1.0 out of 5.0 by Sensor is useless If you want a light that stays on all night and you're very handy, this is the product for you. If there's even a little rain or wind, or a shiny car in the driveway, it will stay lit up all night. On a dry windless night, it might switch itself off about 25 percent of the time. Still doing better than my previous Defiant light, which stayed on all day and off all night. December 20, 2014
  • 2015-05-23T11:05:30.373-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_76, tr_76
  • loc_en_US, sid_203303763, prod, sort_default
2 3 4 >>


Standard Shipping includes delivery by small parcel service. Processing time varies by product.

If product is eligible for shipping to AK, HI and US Territories additional transit time and remote surcharges may apply.