Plastic Diffuser For LED Strip
LED Strip Light Diffuser
Professional plastic extrusion manufacturer specializing in custom diffuser profiles for LED lighting applications since 1998.
We produce polycarbonate and acrylic lampshade covers with 50%-95% light transmission. Our factory operates 35 production machines with 80 dedicated employees, delivering precision optical extrusions to lighting manufacturers worldwide.
27+
Years Experience
90+
Diffuser Models
35
Extrusion Lines
80
Employees
LED Strip Diffuser Product Categories
Our diffuser collection includes over 90 profile designs manufactured from PC and PMMA materials. Each profile is engineered for specific lighting applications with customizable optical properties, surface finish, and dimensions.
PC & PMMA covers for LED channels and aluminum profiles
Linear profiles for T5/T8 tube replacements
Impact-resistant PC extrusions for industrial use
High-clarity PMMA for decorative applications
Why Choose Our LED Strip Diffuser
Integrating sphere testing ensures 50%-95% light transmission accuracy for every production batch.
Work with PC, PMMA, PVC, ABS, PS, HIPS, TPU, TPE materials for diverse application requirements.
Mold tooling from $400-$1500. Complete custom design and sampling within 72 hours.
Surface options include clear, frosted, milky white, and zigzag texture to minimize extrusion lines.
Unlimited length through extrusion process. Custom cutting to your specified dimensions.
Linear led strip diffuser
co-extrusion diffuser channel
led light diffuser cover
Light diffuser tube
PC vs PMMA: Material Comparison for Lighting Diffusers
Choosing the right material depends on your application requirements. We manufacture both polycarbonate and acrylic extrusion profiles with precise optical specifications.
Polycarbonate (PC)
Impact-Resistant Choice
PC profiles offer superior impact resistance and temperature stability, ideal for industrial, outdoor, and high-traffic applications. This material can be rolled into bundles for packaging if the design is flat, wide, and not too thick.
- Key Feature: High Impact Resistance
- Heat Resistance: Higher than PMMA
- Flexibility: Can Be Rolled
- Best For: Industrial, Outdoor
Acrylic (PMMA)
Optical Clarity Choice
PMMA profiles deliver superior optical clarity, perfect for decorative, retail, and architectural lighting where visual appearance is paramount. Note: Acrylic cannot be rolled into bundles due to material brittleness.
- Key Feature: Optical Clarity
- Scratch Resistance: Better than PC
- Flexibility: Cannot Be Rolled
- Best For: Indoor, Decorative
Extrusion Profile Shapes
Our plastic extrusion technology produces diffuser profiles in various cross-section shapes. All profiles can be cut to specified length with unlimited continuous extrusion capability.
U-Channel Cover
Snap-in design for aluminum channels
D-Shape Lampshade
Semi-circular for linear fixtures
Flat Panel Cover
Wide format for panel lights
Round Tube Profile
360° light emission applications
Surface Finish Options
Surface texture directly impacts light diffusion quality and hotspot visibility. Adding zigzag designs can improve appearance and minimize visible extrusion drag lines.
Clear Transparent
Maximum brightness output
Frosted Semi-Clear
Reduced hotspots, most popular
Milky White Opal
Wide format for panel lights
Zigzag Textured
Minimizes visible extrusion lines
Custom OEM/ODM Manufacturing Services
Partner with Dachang for your lighting diffuser needs. With 27 years of plastic extrusion expertise and 35 production machines, we deliver custom solutions from concept to mass production.
Custom Profile Design
Bring your designs to life. Provide dimensional drawings or samples, and we complete mold design and sampling within 72 hours.
- Provide drawings or samples
- 72-hour mold design & sampling
- Tooling cost: $400-$1500
- Custom cross-section shapes
- Unlimited length extrusion
Material Options
We work with diverse engineering plastics for your specific optical and durability requirements.
- Polycarbonate (PC)
- Acrylic (PMMA)
- PVC, ABS, PS, HIPS
- TPU, TPE materials
- Light transmission: 50%-95%
Production Capability
Scale from prototype to high-volume production with consistent quality and ISO 9001 certified processes.
- 35 production machines
- 80 dedicated employees
- MOQ from 300kg total weight
- Integrating sphere QC testing
- ISO 9001 certified
Inquiry
Drawings / Samples
Quotation
Based on specs
Mold Making
72-hour sampling
Approval
Sample confirmation
Production
Order manufacturing
Shipping
Global delivery
Quality Certifications & Standards
FAQ
Q: What is the difference between PC and PMMA diffuser profiles?
A: Polycarbonate offers higher impact resistance and heat stability for industrial applications. Acrylic provides superior optical clarity and scratch resistance for decorative lighting. PC can be rolled for packaging while PMMA cannot due to brittleness.
Q: What is the minimum order quantity?
A: Our MOQ starts from 300kg total weight. Each product has different sizes and weights, so the exact quantity varies by profile specifications.
Q: How much does custom mold tooling cost?
A: Custom mold tooling typically costs $400-$1500 depending on profile size and complexity. We can complete mold design and sampling within 72 hours.
Q: How do you control light transmission accuracy?
A: We use a translucent integrating sphere to test transparency. Customers can provide original LED light boards so we can match the required transmission from 50% to 95%.
Q: How to minimize visible extrusion lines on the surface?
A: Extrusion drag lines are inevitable but can be minimized. Adding zigzag designs to the surface can improve appearance and reduce visible lines.
Q: Can profiles be rolled for packaging?
A: For PC materials, flat and wide designs with appropriate thickness can maintain flexibility for roll packaging. Acrylic (PMMA) profiles cannot be rolled due to brittleness.
Q: Can you provide matching end caps?
A: We specialize in extrusion profiles. For end caps, we can coordinate with cooperating manufacturers to produce them together upon request.
Q: Are your materials environmentally compliant?
A: Yes, we use legitimate eco-friendly materials complying with RoHS and REACH standards, suitable for export to global markets.
Q: What are the applications for polycarbonate LED strip diffusers?
A: Polycarbonate LED strip light diffusers are widely used in commercial lighting, architectural installations, retail displays, industrial facilities, and outdoor environments where durability and impact resistance are essential.
We are professional led strip light diffuser manufacturers and suppliers in China since 1998. Welcome to buy high quality customized led strip light diffuser made in China from our factory.