What size screws should i get to connect projector to the shroud, since it didnt come with any?

You should NOT screw the shroud to the projector. You can easily force the screw into a working component or it could affect the light output. Just use JB Weld, or Silicone. Or dont be cheap and buy $5 Projector Shroud Centric Rings that will make the shroud "click" on and off the projectors housing and wont require any screws (LOL!) or JB Weld.

Exactly how long is the projector?

The projector is already installed in my car but if I had to guess i'd say the total length from the projector lens to the end of its housing is around 6 inches. This is just my guess. I retrofitted it in a 99 civic headlamp with no clearance issues. I would contact the seller to see if you could get exact dimensions of the product.Thank You.

Are these easy replacements for Spec-d aftermarket headlights?

It depends on the type of car lightingBut mostly it's easyMy car Camry 1994Did not last more than an hour to install almost

My 2015 tundra uses 9003/h4 bulbs. does this convert to h1? or do i use the h4 adapter and a harness?

This is H1 already, H4 adapter comes with it. I kept the H1 and bought HID set with the harness for it.

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Nilight - 10041P 2.5" Mini Projector Lens for H1 Bulb Headlights Retrofit, Custom Headlamps Conversion:Chrome Shround,2 Years Warranty

Product ID: 3381313

Details

Brand
Nilight
Color Temperature
4000 Kelvin
Fit Type
Universal Fit
Included Components
2.5" Mini Lens
Light Source Type
Xenon

🔆2.5-inch crystal-clear lens

🔧Universal H1 bulb compatibility

🛠️Complete retrofit kit with adapters

€ 88.25

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Description

🚗 Light Up Your Drive with Precision & Style!

SEAMLESS UNIVERSAL FIT - Compatible with H1 bulbs and includes H4/H7 adapter plates for versatile installation in tight spaces.
SLEEK CHROME SHROUD DESIGN - Enhance your vehicle’s aesthetic with a polished, factory-matched chrome finish that screams premium.
ALL IN ONE RETROFIT SOLUTION - Comes with lock rings, rubber washers, and chrome shrouds—everything you need for a flawless custom headlamp upgrade.
CONFIDENCE WITH 2 YEAR WARRANTY - Backed by Nilight’s reliable 2-year warranty, ensuring durability and peace of mind on every drive.
PRECISION OPTICS FOR ULTIMATE CLARITY - 2.5-inch mini projector lens delivers sharp, focused beams for superior night driving.

The Nilight 10041P 2.5" Mini Projector Lens kit is a universal-fit retrofit solution designed for H1 bulb headlights. Featuring a crystal-clear 2.5-inch lens and chrome shrouds, it offers a sleek upgrade for low/high beam applications. The kit includes all necessary adapters and installation accessories, ensuring compatibility with H4/H7 setups and tight spaces. With a 2-year warranty and a 4000K cool white xenon light source, it combines performance, style, and reliability for professional-grade custom headlamp conversions.

Specifications

ASIN	B00B21R0TA
Auto Part Position	Inner
Automotive Fit Type	Universal Fit
Best Sellers Rank	#28,385 in Automotive ( See Top 100 in Automotive ) #75 in Automotive Headlight Assemblies
Brand Name	Nilight
Color Temperature	4000 Kelvin
Customer Reviews	4.0 4.0 out of 5 stars (2,640)
Fit Type	Universal Fit
Global Trade Identification Number	00608090100879
Included Components	2.5" Mini Projector Lens
Item Type Name	Nilight 2.5" Mini Bixenon Projector Lens for H1 Bulb Headlights Retrofit, Custom Headlamps Conversion:chrome Shround,2 Years Warranty
Light Color	4000K Cool White, 6500K Bright White
Light Source	Xenon
Manufacturer	Nilight
Manufacturer Part Number	10041P
Manufacturer Warranty Description	2 Years Warranty
Model Number	10041P
Number of Items	1
Number of Packs	2
Number of Pieces	8
Set Name	Set of 8
UPC	608090100879
Unit Count	1 Count

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€ 88.25

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cyprus.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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