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921-24-5050-CW Cool White 5050 SMD Light Bulb with Wedge Base

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Your Price:
$9.99 (You save $2.50)
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Product Description

Click Image for more pictures and specifications.  Buy 10 per SKU and save 10%.

24 SMD chips on this bulb.  Competitor bulbs only have 18 chips to save money but do it at the expense of light output.

Full Aluminum Cage, you can feel the weight difference!  Competitor Bulbs have fiber cages.


24 Cool Bright White Light 5050 SMD LEDs  (if you prefer Warm White Light, see item 921-24-5050-WW

Easy push installation

Standard T10 Wedge base - may ship silver or white  Cross References to incandescent bulbs 904, 904NA, 906, 906NA, 912, 916, 916NA, 917, 920, 921, 922, 158, 160, 161, 161B, 168, 168A 168NA, 175, 193, 194, 194B, 194G, 194NA, 194R, 2821, 2825, 2827, 2886X, 3652, 558, 579, 658, W5WB

Important Information about Lumens and Visual Light Output

Item Number 921-24-5050-CW
Color Kelvin 5500
Calculated Lumens 360
Amps at 12.8v DC (Fluke Actual) 0.17
Rated Volts 10-30v DC
Polarity Non Polarity
Overall Length 1 3/4" 
Overall Width (or diameter) 3/4"
Overall Height n/a

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Product Reviews

Showing reviews 1-10 of 80 | Next

  1. Bright. White. Light. 5 Star Review

    Posted by on 26th Oct 2018

    Replaced some regular wedge bulbs with these. What a difference. You’ll notice the difference in YOUR RV too.

  2. Perfect 5 Star Review

    Posted by on 21st Aug 2018

    Just the right brightness

  3. Change for the Best !! 5 Star Review

    Posted by on 31st May 2018

    Bulbs installed very easily. Provide excellent lighting for my trailer. Reduced the number of lights that were needed for proper lighting to just a few of these. I purchased as a test and will be replacing the rest. Thanks

  4. absolutely wonderful! 5 Star Review

    Posted by on 4th May 2018

    The difference between these lights and the factory ones I can with my truck is unimaginable. I knew there would be an improvement but I never imagined it would be this great of an improvement. I highly recommend these bulbs.

  5. Travel Trailer LED'S 5 Star Review

    Posted by on 14th Feb 2018

    Super Fast Shipping , I ordered 18 of the 5050 warm white and 1 of the 5630 natural white to replace all the 921 bulbs in my travel trailer. The M4 bulbs were all individually packaged and well made. I replaced all the bulbs in the camper within 10 minutes and it is the brightest i have ever seen it on the inside. One final note prior to replacing the 921 bulbs, my inverter was running with just one light on with two of the incandescent bulbs in it. After replacing all the fixtures with the M4 LED'S, i turned all 18 bulbs on at once and the inverter never came on.

    M4 Note: Typically what you hear (or don't hear in this case), is the battery charger cooling fan. With less load, the fan does not come on, which is very nice when camping on shore power.

  6. Excellent Product well made and lasts. 5 Star Review

    Posted by on 7th Nov 2017

    Product meets specifications and throws out alot light. Well made and not the cheap china made like other LEDs I have bought via Amazon. Delivery was prompt.

  7. Buy here 5 Star Review

    Posted by on 24th Aug 2017

    The best place I have found to purchase quality LED replacement bulbs. Customer service is excellent. Fast shipping.

  8. 100% Working upon installation and bright 5 Star Review

    Posted by on 9th Aug 2017

    M4 Products is the best company to do business with. Not only do they have a first rate product, their customer service is beyond any company in America that I have dealt with. My product was missing from the mailbox (USPS said they delivered it there). After a lot of checking with USPS and getting no where, M4 sent a 2nd batch to me for no cost on my part. Can you believe that? Owner is awesome.

  9. Very satisfied 5 Star Review

    Posted by on 16th Jun 2017

    I just received the 2 LED 921-24-5050-CW and installed them in the bathroom of the RV. My wife is very happy because they give so much light for her while she does her morning makeup. So, if my wife is happy, I am happy. I have just completed an order for additional bulbs.

  10. LED 921-24-5050 replacement for #921 incandesent bulbs 5 Star Review

    Posted by on 15th May 2017

    I'm planning on taking my 1998 pop-up camper to Yellowstone in August and it's not likely I'll be at a campsite with electric. It will be imperative to conserve battery power. The 4 LED light replacements will do the trick, taking about 1/7th the power (0.17 amp vs 1.2 amp for each of the #921 originals) and a brighter light. As mentioned by others, is a tighter fit than the #921 bulbs they replace but there doesn't appear to any problem with clearance once in. I handled them with a Kleenex so as not to get oils on my fingers on any parts of the bulb. The order was filled quickly and shipping was really fast. I did have a problem with one of the bulbs ordered but a replacement was sent out at no charge. The wider voltage range (10-30v) for these bulbs is must for older units where voltage can vary. Fantastic customer service.

Showing reviews 1-10 of 80 | Next