The cyanotype process relies on a precise UV exposure to yield the hallmark blue-and-white prints. For American makers, choosing a reliable 395 nm or nearby UV-A light source is crucial for consistent results, whether you’re working on textiles, paper, or mini cyanotypes. The following five LED exposure units were selected for their combination of wavelength specificity, exposure speed, adjustable stands, and build quality. Each model is designed to deliver uniform illumination and predictable curing times, helping you achieve reliable cyanotype outcomes across projects. Use the table below to quickly compare core specs before reading detailed sections.
| Product | Brand | Wavelength | Power | Notable Feature |
|---|---|---|---|---|
| Caydo 50W UV Exposure Unit for Cyanotypes | Caydo | 395 nm | 50W | Adjustable stand; quick exposure |
| UrekaGo 50W UV LED for Cyanotype | UrekaGo | 395 nm | 50W | Durable housing; IP65 rating |
| Dorhui 50W LED Exposure Unit | Dorhui | 395 nm | 50W | 360° rotation; adjustable distance |
| ANGOO 50W LED Exposure Unit | ANGOO | 395 nm | 50W | Foldable design; 1-999s timer |
| Speedball 30W LED UV Exposure Lamp | Speedball | 395-400 nm | 30W | 180° swivel mount; versatile placement |
Caydo 50W UV Exposure Unit for Cyanotypes
The Caydo 50W UV exposure unit is designed to deliver a compact, dependable solution for cyanotype work. With a defined 395 nm wavelength, this light provides uniform illumination across a 13 cm by 23.5 cm exposure area, helping to streamline the curing of photosensitive emulsions. The lamp’s 50W output accelerates exposure without excessive heat buildup, typically yielding a complete exposure within 3–5 minutes depending on emulsion thickness. An ON/OFF switch enables quick operation, and the included instruction manual simplifies setup. The stand height and angle can be adjusted to accommodate different screen sizes or paper formats for consistent results.
- 395 nm wavelength for reliable cyanotype exposure
- 50W LED with uniform illumination
- Exposure typically 3–5 minutes
- Adjustable height and angle; easy setup
UrekaGo 50W UV LED for Cyanotype
The UrekaGo 50W UV LED unit emphasizes durability and speed. Its 395 nm emission target is tuned to activate cyanotype papers and emulsions efficiently, delivering professional-grade results. The light’s performance is designed for extended use, boasting up to 50,000 hours of lifetime and a robust die-cast aluminum housing that dissipates heat effectively. An IP65 rating makes it suitable for both indoor studios and outdoor setups, allowing for versatile cyanotype sessions. With wide coverage, this unit can shorten exposure times without compromising print quality, making it a strong option for serious makers.
- 395 nm wavelength optimized for cyanotype chemistry
- 50W power with long 50,000-hour lifespan
- IP65 waterproof rating; durable housing
- Extends coverage to accelerate exposure
Dorhui 50W LED Exposure Unit for Cyanotypes
Dorhui’s exposure unit focuses on precise control and uniform curing for cyanotypes. Its 395 nm wavelength is paired with 50W LED output to help reduce exposure times to about 3–5 minutes, depending on emulsion thickness. A key feature is the adjustable height and angle of the light, plus a 360° rotation and a 1″ to 20″ distance scale to fine-tune proximity for larger plates or textiles. The light’s 120-degree projection angle with a high-transmittance glass cover helps maximize efficiency and minimize shadowing during curing.
- 395 nm wavelength; 50W LED
- Adjustable height/angle; 360° rotation
- Distance range 1″–20″ for versatile setups
- 120° projection angle; uniform curing
ANGOO 50W LED Exposure Unit for Cyanotypes
ANGOO’s foldable LED exposure unit is built for flexibility and portability. It uses a 395 nm light and a 50W LED array to deliver rapid curing, typically within 5–15 minutes depending on emulsion thickness. The timer is adjustable from 1 to 999 seconds, enabling precise exposure control for varied emulsions. The device ships with a foldable design that requires no assembly, saving setup time in small studios or on-the-go print sessions. Overall, ANGOO emphasizes compact design without sacrificing exposure performance, suitable for hobbyists and professionals alike.
- 395 nm wavelength; 50W LED
- Timer: 1–999 seconds; precise control
- Foldable, portable; no assembly required
- Fast curing for thin to medium emulsions
Speedball 30W LED UV Exposure Lamp
Speedball’s 30W LED UV exposure lamp targets efficient cyanotype development with a wavelength range of 395–400 nm. While slightly lower power than the 50W options, it compensates with a robust 180° swivel mount for flexible lighting angles and hands-free operation. The LED design promises a longer lifespan and reduced maintenance compared to traditional bulbs, making it a dependable choice for regular cyanotype sessions. It’s well-suited for smaller screens or textiles where space is limited and precise alignment is critical for even exposure across the plate.
- 395–400 nm wavelength for cyanotype exposure
- 30W LED with extended lifespan
- 180° swivel mount for flexible positioning
- Versatile mounting options and consistent exposure
Buying Guide
When selecting a UV light for cyanotype, consider wavelength accuracy, exposure speed, and how you plan to work. A steady 395 nm (or near) output is standard for cyanotype chemistry, delivering reliable blue tones and crisp shadows. Higher-powered units (50W) generally reduce exposure times, which can improve throughput but may require more careful distance control to avoid overexposure. For textile or larger-format cyanotypes, light area and uniformity matter as much as raw power. An adjustable stand helps maintain consistent placement for different media, simplifying repeatable results.
Wavelength And Power
Wavelength specificity is key. Most cyanotype emulsions respond best around 395 nm. In practice, 50W models provide faster, more uniform exposure, especially on larger sheets, while 30W units can be adequate for smaller pieces and hobby projects. Consider whether you need a fixed panel or a light with a larger projected area. A device with a stable power supply and good heat management will deliver more consistent results across sessions.
Ease Of Use And Setup
Ease of use matters for regular cyanotype work. Look for models with adjustable height and tilt, simple on/off controls, and clear distance guidelines. Foldable or compact designs save space in smaller studios, while timers help standardize exposure times. If you often work outdoors or in humid spaces, an IP rating (such as IP65) adds resilience and reduces risk of moisture-related issues.
Durability, Safety, And Weather
Durability features such as rugged housings, efficient heat dissipation, and splash resistance extend the life of your exposure unit. Safety considerations include cool-running LEDs, stable bases, and secure cord management. For outdoor cyanotype work, waterproof or weather-resistant units are advantageous. Budget-conscious buyers should balance initial cost with long-term reliability and warranty coverage from reputable brands.
Size, Compatibility, And Value
Match the unit’s footprint to your workspace and the maximum size of your cyanotype projects. Consider whether you need a portable solution for on-site sessions or a fixed setup in a studio. Evaluate long-term value by reviewing lamp life, replacement part availability, and customer support. The best choice balances consistency, ease of use, and durability within your budget, while ensuring the light’s exposure characteristics align with your preferred cyanotype process.