Choosing the right exposure light is essential for reliable screen printing results. This guide highlights top 5 options that deliver consistent UV exposure at practical wattages, wavelengths around 395 nm, and adjustable stands for versatile setups. Each option targets efficient curing, even light distribution, and ease of use, whether you’re working with Diazo emulsions or traditional photo emulsion processes. The selections below are aligned with common screen sizes and provide features like timing, adjustable height, and wide exposure areas to minimize dead spots.
| Product | Brand | Watt / Wavelength | Key Benefit |
|---|---|---|---|
| Dorhui 50W LED Exposure Unit | Dorhui | 50W / 395 nm | Uniform light; 3–5 min exposure; 360° rotating stand |
| Caydo 2-Pack 50W UV Exposure Light | Caydo | 2 × 50W / 395 nm | Two lights; versatile frame sizes; short curing times |
| Caydo 100W LED Exposure Unit | Caydo | 100W / 395 nm | Fast cure; timing device; large exposure area |
| Caydo 50W LED Exposure Unit with Adjustable Stand | Caydo | 50W / 395 nm | Retractable/adjustable stand; easy setup |
| Speedball 30W LED UV Exposure Lamp | Speedball | 30W / 395–400 nm | 180° swivel mount; reliable for consistent exposure |
Dorhui 50W LED Exposure Unit
The Dorhui 50W UV exposure lamp operates at 395 nm and provides uniform illumination to reduce curing time for photosensitive emulsions. Typical exposure takes about 3–5 minutes, depending on emulsion thickness. A 360° rotating light stand and adjustable height/angle help achieve even exposure and minimize dead corners. A large LED field with a high-transmittance glass cover supports broad coverage, suitable for larger screens when used with compatible frames.
Caydo 2-Pack 50W UV Screen Printing Light
This Caydo kit includes two 50W UV exposure lamps with 395 nm wavelength, two stands, and mounting accessories. The 2-in-1 design supports separate use or combined operation for larger frames (up to 20 x 24 inches). Both lights deliver uniform illumination, helping to shorten curing times for photosensitive emulsions and improve consistency across multiple screens. The set is designed to be adaptable to various screen sizes through adjustable stands and configuration options.
Caydo 100W LED Exposure Unit
The Caydo 100W exposure unit offers a higher wattage for faster curing, typically around 1.5 minutes depending on emulsion thickness. It features a timing device with a 0.5 to 9.5-minute range and a user-friendly display. With a broad exposure area, it accommodates screens from 10 x 14 inches up to 20 x 24 inches, making it suitable for larger commercial or hobby projects. The device aims for consistent results and automated shutoff to prevent overexposure.
Caydo 50W LED Exposure Unit With Adjustable Stand
The Caydo unit provides a 50W UV exposure lamp at 395 nm with a retractable, height-adjustable stand. The setup is designed for easy installation and operation, featuring an ON/OFF switch for quick control and straightforward adjustments to achieve the desired exposure angle and distance. Suitable for typical screen printing emulsions, its compact design supports convenient workspace integration.
Speedball 30W LED UV Exposure Lamp
Speedball’s 30W LED UV exposure lamp delivers a 395–400 nm UV-A output with a 180° swivel mount for flexible positioning. This model is designed for reliable, consistent exposure with reduced energy consumption compared to traditional 250W bulbs. Its adjustable orientation helps target emulsion areas precisely, making it a practical choice for small to mid-sized screens and varied layouts.
Buying Guide
Key considerations when selecting a screen printing exposure light:
- Wavelength and intensity: Look for 395 nm UV output to ensure compatibility with standard Diazo and emulsion formulations. Higher wattage accelerates curing but may require careful distance to avoid overexposure.
- Exposure area and screen size: Choose a unit that comfortably covers your largest screen, with options for 10 x 14 up to 20 x 24 inches or larger. A wide projection angle reduces dead spots.
- Adjustability: A stand with adjustable height, angle, and even 360° rotation helps tailor exposure for different emulsions and thick coats.
- Timing and automation: Built-in timers prevent overexposure and simplify workflows, especially when running multiple screens or batch curing.
- Ease of use and durability: Look for clear on/off controls, robust construction, and long-lasting LEDs with high life expectancy for steady daily use.
- Multi-light setups: For larger frames, consider kits with two lamps or modular configurations to ensure uniform exposure across wide areas.
- Maintenance and safety: Check heat generation, lamp cooling, and any protective features. Ensure safe handling and proper ventilation if required.
When comparing models, weigh the balance between speed (faster curing), coverage (screen size compatibility), and flexibility (adjustable stands and multi-light configurations). The 50W to 100W class offers a practical range for most hobbyists and small studios, while higher wattages benefit larger runs or thicker emulsion coats. Always align your choice with typical screen sizes, emulsion types, and the number of screens you cure per session.