I believe the headlight design was not changed from previous years. You either get the projector style or reflector style. Just an FYI, I have the reflector style and have tried MANY different LED bulbs, HID bulbs, and standard halogen bulbs and the light output still sucks. Here are the options so you don't waste your time: Buy the OEM projector style headlights and retrofit them with 4tl-r projectors or buy aftermarket projector headlight assemblies.

 

2015- thru 2020 will fit the 2021's

many do the Phillips H9 9011 bulb swap , I did an they were much better then stock.

Later I went with new headlight assembly's and installed LED's in them cause I wanted no shiney headlights, only thing shiney on the ZR2's

see if I can find them as I just ordered another set after a deer wiped one of them out...along with hood and fender and grill

they come in smoke also but that takes some of the light away

Black 2015-2019 Chevy Colorado LED Tube DRL Dual Projector Headlights Headlamps | eBay

Compatible w/ Factory Halogen Headlights Models Only. Not Compatible on Models w/ Factory HID Headlights. Onyx Black. Black Housing/ Clear Lens. Our main distribution center is over200,000 sq ft in sunny Southern California.

www.ebay.com

I went with supernova v.3 led bulbs
lots of guys go with sealights S3 or benbolt leds

 

2015- thru 2020 will fit the 2021's

many do the Phillips H9 9011 bulb swap , I did an they were much better then stock.

Just looked up the bulbs noted here on Amazon.ca, and it notes that they do not fit a 2018 Chevy Colorado.
I can't believe that there would be ANY difference between US and Canada regarding headlight stats.
I have the reflector type of headlights and don't want to change housings to accommodate LED or HID, so this bulb (although it seems to provide more light than the crappy OME's), doesn't seem to fit.
Does anyone have any other options?

 

I just installed Alla TS-CR Combo LEDs, high and low beams. I live the the country, no streetlights, and the OEM lights were horrible. HUGE difference!! Still have to put the dust covers back on. I have one on and it’s a tight fit, so I may go with an extension for more room and extra space for cooling fan.

Alla Lighting H11 and 9005 LED Bulb Combo HB3 Forward Lighting + H11 Dipped Beam Replacement Xtreme Super Bright Conversion Kits, 6000K Xenon White https://www.amazon.com/dp/B0849Q3G1X/ref=cm_sw_r_cp_api_glc_fabc_42C-FbNZHE2EC?_encoding=UTF8&psc=1

 

here is a picture that shows the tab that you cut, I just got this off of a F-150 forum

 

I installed Xtreme LED Pro series H11 for my low beams in my 2020LT yesterday and wow what a difference! They’re not cheap but my friend has them in a Ram for a year now and they’re still working great so I went with them.