A new 18°–36° projector lens is now available for COB LED lights, providing versatile lighting options for photographers and filmmakers. This stepless zoom attachment allows precise control over the light with a lightweight design. It is compatible with most COB lights up to 200 W and includes creative accessories like GOBO inserts and color filters.
SIRUI has introduced a new 18°–36° stepless zoom projector lens, designed to work with COB LED lights. This lightweight accessory allows users to control the beam size and focus with ease, providing creative lighting options for photographers, videomakers, and content creators alike. Weighing just 1.7 kg, it is compact and portable, making it suitable for both studio setups and on-location shoots.

The attachment offers seamless adjustment of the light angle between 18° and 36°, eliminating the need to switch between different lenses. It includes 15 GOBO patterns and three color filters, adding versatility for unique lighting effects and enhanced creative expression. Built from durable aluminum alloy with a heat-protective design, the projector lens also comes with shutter blades for fine-tuned light control, making it a valuable tool for those looking to achieve precise, striking lighting in their projects.
Customizable Beam and Creative Flexibility
The SIRUI 18° – 36° projector lens offers versatile light shaping capabilities, allowing users to adjust the beam angle smoothly without the need to switch lenses. Its stepless zoom design provides flexible, one-handed control, enabling precise adjustments between 18° and 36°. With the included 15 GOBO patterns, three color filters, and fixed shutter blades, this attachment unlocks extensive creative options, making it ideal for dynamic lighting scenarios and unique visual effects.

Built for Portability and Durability
Weighing only 1.7 kg, the SIRUI projector lens is designed for portability without compromising on build quality. Its lightweight, compact form factor makes it easy to handle, whether in a studio or on location. The sturdy aluminum alloy construction ensures durability, and the included anti-shock protective case provides secure storage and transportation. This makes the lens a practical solution for photographers and videomakers working in diverse environments.
Broad Compatibility and Efficient Cooling
The SIRUI projector lens features a Bowens mount, making it compatible with a wide range of COB LED lights under 200 W, including SIRUI’s Blaze and CS Series monolights. It is engineered for reliable performance, featuring an effective heat dissipation system that prevents overheating during extended shoots. This ensures consistent results and safe handling, even in demanding lighting setups.

Specs
Click to view
| Brightness boost | 18°: 2.69x 36°: 1.14x |
| Lens aperture | Ø 68 mm |
| Beam angle | 18 – 36° |
| CCT accuracy | 95% |
| Max. focusing distance | 5 m |
| Min. focusing distance | 1 m |
| Filter thread | Ø 72 mm |
| Mount type | Bowens |
| Weight | 1706 g |
| Dimensions | 30.5 × 15.7 × 11.8 cm |
| Storage temperature | -20 – 60°C |
| Working temperature | -10 – 40°C |
What’s Included?

- Projector Lens
- GOBO Holder
- GOBO inserts × 15
- Color filter × 3
- Carry case
Price & Availability
The SIRUI 18-36° projector lens is currently available on Kickstarter with a special Super Early Bird price of $399.00 (approximately €362.00), offering a $100 discount off the retail price of $499.00. This offer includes free shipping and is available while the limited stock lasts. Shipping is expected to begin in mid-November.
