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Description
SIRUI 18°-36° Stepless Zoom Projector Lens for COB LightSince SIRUI began to produce lights, bendable lights, self inflating lights, tube lights, monolights, panel lights and light accessories have come into the market. Now, SIRUI launches one new lightweight product P1836A Projector Zoom Lens, which can be mounted on COB light to provide users with amazing lighting effects, suitable for photographer, studio and lighting designer to operate flexibly and creatively. With the advanced optical design
Since SIRUI began to produce lights, bendable lights, self-inflating lights, tube lights, monolights, panel lights and light accessories have come into the market.
Now, SIRUI launches one new lightweight product - P1836A Projector Zoom Lens, which can be mounted on COB light to provide users with amazing lighting effects, suitable for photographer, studio and lighting designer to operate flexibly and creatively.
With the advanced optical design technology, you no longer need to change lenses! The 18° - 36° stepless zoom lens allows you to fast and accurately control the light by smoothly rotating the focus adjusting twist lock with only one hand. This helps you change the angle and focus of the light, making it easy to change the shape of the light within the same distance.
Users don't have to purchase the aperture. Just mount this lens on the monolight to change light size and sharpness smoothly and naturally, which brings you efficient and convenient shooting experience.
Spot Size Adjustment
Focus Change
*Tighten the locking focus knob to prevent focus from being changed accidentally.
Thanks to SIRUI’s mature optical technology, it adopts integrated sealing design to this projector lens, making the lens extremely compact, only 1.7kg.
Other Brand
P1836A
Film
Live Streaming
Portrait
Creative Shooting
This projector lens can be mounted on a light stand to increase stability via one mini lens support with 1/4"-20 threaded hole when this lens is used with a small and lightweight light.
*P1836A projector lens works well with COB light which is below 200W. It is suggested to turn down the light if the power is above 200W. Or, the projector lens may be damaged.
Compact and portable lens for easy transport, ideal for indoor and outdoor shooting. This lens can also be flexibly operated even in narrow situations.
1/4”-20 threaded hole
This lens can also be flexibly operated even in narrow situations.
Designed with precise optical lens and low reflection lens coating technology, this projector lens helps correct chromatic aberration and further increase resolution and sharpness and also reduce distortion. Besides, this lens can project more than 98% even light and sharp clear shadow.
Uniformity of Light Spot
% Relative Illumination
Relative Illumination - 3m
Real Chief Ray Image Height (mm)
Zoom Position 1
Uniformity of Light Spot
% Relative Illumination
Relative Illumination - 3m
Real Chief Ray Image Height (mm)
Zoom Position 1
Strong aluminum alloy construction lens with heat-protective design and hollow design helps dissipate heat efficiently. When working with lights under 200W, the built-in heat dissipation system makes the temperature of this lens cover lower than similar products, which prevents your hands from being scalded when you are operating. And it makes the light system work normally, too.
*Please turn off the light first and detach the lens until the lens cools.
Strong Aluminum Alloy Construction
P1836A+CS200B
Compared with similar products, the data shows that temperature of SIRUI P1836A rises less and the heat dissipation is better, which is safer.
*The data above comes from SIRUI laboratory.
Four grooves are designed for easily inserting included shutter blades to cut or shape the light projected on the subject. And the fixed design shutter blades suit the grooves well.
Users can choose from 15 pieces of GOBO patterns and insert different GOBO patterns to the light to create various fantastic lighting effects, making the background rich.
Besides, the non-contact installation of GOBO patterns provides you with great convenience.
The GOBO pattern can be rotated freely, allowing you to get ideal and excellent lighting angle.
Three filters are included - red, yellow and blue. It is possible to mount the filter on the 72mm threaded mount of this projector lens to offer colorful lighting effects and make shooting creative.
This projector lens works well with COB light under 200W. It is suggested to mount this lens on SIRUI Blaze Series Monolight or CS Series Monolight to create brilliant images.
Gobo Holder
Shutter Blade
Bowens Mount
Heat Exhaust Fan
Focusing
Lens Tube
Zoom Ring
Name of Part
Specifications
Name
18° - 36° Projector Lens
Brightness
Improvement
Improvement
18 °: 2.69x / 36 °: 1.14x
Lens Aperture
Ø68mm
Field of View
18°~36°
Relative Illumination
@0.9 Field
@0.9 Field
18 °: ≥90% / 36 °: ≥50%
CCT Accuracy
>95%
Maximum Focusing Distance
>5m
Minimum Focusing Distance
<1m
Filter
72mm
Mount Type
Bowens Mount
Weight
1706g/3.8lb
Dimensions
305mm*157mm*118mm
12.0in*6.1in*4in
12.0in*6.1in*4in
Materials
Metal + Plastic
Surface Temperature
≤60° (With SIRUI 200W Light)
Storage Temperature
-20~60℃
Working Temperature
-10~40℃
Work with SIRUI CS200B, CCT 2800K/3200K/4300K/5600K/6500K
Data of Illuminance@1m/3m/5m
Data of Illuminance@1m/3m/5m
*The data above comes from SIRUI laboratory.
What's in the Box
Lens Only
① Projector Lens *1
② GOBO Holder *1
③ GOBO Pattern *15
④ Filter *3
⑤ Safety Box *1
⑥ Warranty Card *1
Kit
① Projector Lens *1
② GOBO Holder *1
③ CS200B *1
④ GOBO Pattern *15
⑤ Filter *3
⑥ Safety Box *1
⑦ Warranty Card *1
Lightweight safety box featuring anti-shock, pressure resistance and chemical resistance is designed to protect your projector lens during transport.
What's in the Box
Lightweight safety box featuring anti-shock, pressure resistance and chemical resistance is designed to protect your projector lens during transport.
Lens Only
① Projector Lens *1
② GOBO Holder *1
③ GOBO Pattern *15
④ Filter *3
⑤ Safety Box *1
⑥ Warranty Card *1
Lightweight safety box featuring anti-shock, pressure resistance and chemical resistance is designed to protect your projector lens during transport.
Kit
① Projector Lens *1
② GOBO Holder *1
③ CS200B *1
④ GOBO Pattern *15
⑤ Filter *3
⑥ Safety Box *1
⑦ Warranty Card *1
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 3
Missing Dividers
Color: Black, Size: 9.4*4.1*5IN
Disappointed it was missing the adjustable dividers.
Not great to hold dishwashing brushes. They slip right threw the side.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
★★★★★ 4
Sturdy. Built to last. It solves all the problems my old organizer had. Very satisfied.
Review for ARTLEO Kitchen Sink Caddy with Super Water Absorbent Diatomite Stone Sink Tray, Fast Drying Sink Organizer with High Dish Brush Holder Sponge Holder for Kitchen Sink, Stainless Steel
This appears to be a sturdy organizer of stainless steel painted with a good amount of black protective paint. I ordered it to replace an inferior organizer of the same material (made by a different company altogether).
This one solves the problems I had with my previous organizer which had begun to rust and break apart after six months of use.
The narrow steel bars on the bottom shelf of this new organizer are supported by wider steel flats in the frame that will prevent them from breaking off the frame. (My old organizer bars broke because they were barely welded onto the frame and the repeated "pushing down" of my soap pump-bottle eventually broke them apart from the frame).
The pads that prevent it from sliding across my counter in big waves (we live and travel on a boat) are secured around the steel legs as opposed to just being glued onto the bottom (like the pads of my previous organizer were, which fell off). There is no metal hanging over onto the sink edge to cause rust (like the metal that had caused rust with my old organizer.)
The dish-brush holder can fit on the inside of the frame or it can hang on the outside of the organizer, which is nice because it makes more room if you have many tools that you like to use at the sink. And it can be compact if you don't. Be cautious not to remove the hanging part (dish-brush holder) too often because repeated wear can cause the paint to rub off and it could begin to rust.
The "Water Absorbent Diatomite Stone" is new to me but it seems to be working just fine. I assume I will have to clean out the ridges of it as gunk forms there, but that would be the case with any sink organizer tray.
I am very satisfied with this organizer, it is robust and it solves all the problems I had with my previous one.
The price is on the higher side of similar organizers, currently priced at $23.99.
All the best,
Mrs. dr
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Reviewed in the United States on June 16, 2025
★★★★★ 5
Cosina
Color: Black, Size: 9.4*4.1*5IN
Excelente producto
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 23, 2026
★★★★★ 5
Well made kitchen caddy
Color: Black, Size: 9.4*4.1*5IN, Color: Black, Size: 9.4*4.1*5IN
Appears to be well made. Just the right size, not too large or small. After purchasing and returning several caddies. This one is the keeper. I'm sure be just as pleased as I am. Go for it , you won't regret it.
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Reviewed in the United States on October 19, 2025
★★★★★ 5
Best kitchen sink caddy ever purchased
Color: Black, Size: 9.4*4.1*5IN
Love it!!! Best kitchen sink caddy I've ever purchased!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 1, 2026