% Youkoyi A509 LED Lamp Review: Overpriced and Underperforms Menu Lifewire Tech for Humans Newsletter! Search Close GO Best Products > Smart Home
Youkoyi A509 LED Lamp Review
The Youkoyi A509 makes a number of bizarre and bad design choices.
By Eric Watson Eric Watson Writer Texas Christian University Eric Watson is a tech writer who specializes in video games and gaming. His work has appeared in PC Gamer, Polygon, Tabletop Gaming Magazine, and more.
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Brandon Kumar 1 minutes ago
lifewire's editorial guidelines Updated on June 18, 2019 Tweet Share Email We independently research...
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Luna Park 1 minutes ago
2.2
Youkoyi A509 LED Swing Arm Lamp
Lifewire / Jordan Provost What We Like Easily adjustab...
lifewire's editorial guidelines Updated on June 18, 2019 Tweet Share Email We independently research, test, review, and recommend the best
products—learn more about our process. If you buy something through our links, we may earn a commission.
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Aria Nguyen 6 minutes ago
2.2
Youkoyi A509 LED Swing Arm Lamp
Lifewire / Jordan Provost What We Like Easily adjustab...
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Lucas Martinez 2 minutes ago
In the modern age of LED lighting panels, traditional bulky hood lamps are mostly a thing of the pas...
Lifewire / Jordan Provost What We Like Easily adjustable arms and lamp head Impressive lamp hood rotation What We Don't Like Feels cheap and flimsy Beeping noise when pushing buttons Unattractive design Expensive The Youkoyi A509 LED Lamp’s bulky, unattractive design, limited lighting options, and hefty price tag make it a poor choice for LED lamps. View On Amazon 2.2
Youkoyi A509 LED Swing Arm Lamp
Lifewire / Jordan Provost View On Amazon in this article Expand Design Setup Process Color Temperature and Brightness Smart Light Options Price Competition Final Verdict Specs We purchased the Youkoyi A509 LED Lamp so our expert reviewer could thoroughly test and assess it. Keep reading for our full product review.
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David Cohen 5 minutes ago
In the modern age of LED lighting panels, traditional bulky hood lamps are mostly a thing of the pas...
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Lucas Martinez 9 minutes ago
The distractingly huge lamp hood on the Youkoyi A509 would more commonly fit a fish tank from ten ye...
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Kevin Wang Member
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8 minutes ago
Tuesday, 06 May 2025
In the modern age of LED lighting panels, traditional bulky hood lamps are mostly a thing of the past. That’s what makes the Youkoyi A509 so curious. It’s a premium swing arm LED lamp with an outdated design.
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Evelyn Zhang 4 minutes ago
The distractingly huge lamp hood on the Youkoyi A509 would more commonly fit a fish tank from ten ye...
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Noah Davis 8 minutes ago
Lifewire / Jordan Provost
Design A rotating aquarium light
The Youkoyi A509 is a C-cla...
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David Cohen Member
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20 minutes ago
Tuesday, 06 May 2025
The distractingly huge lamp hood on the Youkoyi A509 would more commonly fit a fish tank from ten years ago than a modern, expensive architect-style desk lamp. The Youkoyi’s retro design and lack of features ultimately make it a poor choice as a premium LED desk lamp.
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Evelyn Zhang 17 minutes ago
Lifewire / Jordan Provost
Design A rotating aquarium light
The Youkoyi A509 is a C-cla...
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Madison Singh Member
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12 minutes ago
Tuesday, 06 May 2025
Lifewire / Jordan Provost
Design A rotating aquarium light
The Youkoyi A509 is a C-clamp architect LED lamp with two adjustable swing arms and a large 20.8-inch hood that houses the LED. The clamp supports desks up to 2.36 inches thick. Tightening and loosening the clamp is made easier thanks to the large plastic screw on the bottom. The bottom arm measures 22.4 inches and slots into the clamp, while the second arm (18.5 inches) connects to the hood.
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Victoria Lopez 2 minutes ago
The upper arm can rotate up to 175 degrees, but the bottom only up to 70 degrees. Even with the scre...
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William Brown 1 minutes ago
For some unfathomable reason, every push of one of the buttons results in a high-pitched beeping sou...
The upper arm can rotate up to 175 degrees, but the bottom only up to 70 degrees. Even with the screw in place, the swing arm lamp felt flimsy while making adjustments. It never fell out of the clamp but always felt much looser than we would have liked.
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Sebastian Silva 4 minutes ago
For some unfathomable reason, every push of one of the buttons results in a high-pitched beeping sou...
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Harper Kim 3 minutes ago
This feature proves annoying more than helpful. Lifewire / Jordan Provost
For some unfathomable reason, every push of one of the buttons results in a high-pitched beeping sound We found the bulky retro aquarium hood lamp wholly unattractive, and the microwave plastic touch buttons didn’t raise our esteem. For some unfathomable reason, every push of one of the buttons results in a high-pitched beeping sound, including adjusting the brightness, color temperature, and turning it off and on.
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Hannah Kim Member
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Tuesday, 06 May 2025
This feature proves annoying more than helpful. Lifewire / Jordan Provost
Setup Process Clamp and adjust
The Youkoyi A509 comes pre-assembled. You need only to attach the C-clamp to a desk or table, loosen the screw nut, and insert the swing arm lamp.
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Ryan Garcia 6 minutes ago
The screw on the clamp can be removed completely to allow full 360-degree rotation, though even with...
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Madison Singh Member
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50 minutes ago
Tuesday, 06 May 2025
The screw on the clamp can be removed completely to allow full 360-degree rotation, though even with the screw the lamp can rotate up to 270 degrees around the clamp. The arms can be completely straightened up to an impressive length (or height) of 40 inches.
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Kevin Wang 22 minutes ago
The A509’s best feature is the easily maneuverable LED hood. The lamp head is capable of a full 36...
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Chloe Santos Moderator
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55 minutes ago
Tuesday, 06 May 2025
The A509’s best feature is the easily maneuverable LED hood. The lamp head is capable of a full 360-degree horizontal rotation and 180-degree vertical rotation, adjusting quickly and painlessly thanks to the rubber connectors. Moving the lamp head is satisfyingly easy.
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Emma Wilson 27 minutes ago
It instantly locks and stays in place without having to tighten or loosen anything. Lifewire / Jorda...
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Luna Park 21 minutes ago
The 3000K gives off a familiar amber light for easier eye strain in low-light conditions, while 4200...
It instantly locks and stays in place without having to tighten or loosen anything. Lifewire / Jordan Provost
Color Temperature and Brightness Only two temperatures and four brightness levels
Despite its relatively large size, the A509 is limited to just two color temperatures: 3000K and 4200K with the standard 8-watt model (a 16-watt model is also available that replaces the 4200K with 5750K).
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Sofia Garcia Member
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26 minutes ago
Tuesday, 06 May 2025
The 3000K gives off a familiar amber light for easier eye strain in low-light conditions, while 4200K produces a more natural white light, though still far less than what most modern LED lamps can reach. With only two color modes and almost a complete lack of features, this clamp lamp underperforms at a grossly inflated price tag. Both light modes can be dimmed in four 25 percent increments, though the dimmer must be cycled in order with the push of the single brightness button.
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Ella Rodriguez Member
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70 minutes ago
Tuesday, 06 May 2025
The one advantage to the retro hood design is that the buttons are located on the front and accessible from any lamp configuration. Lifewire / Jordan Provost
Smart Light Options Includes a limited one-hour timer
The Youkoyi A509 will remember its last color mode and brightness level thanks to the built-in memory function. A breathing indicator light can be turned off or on by long-pressing the power button.
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Amelia Singh 25 minutes ago
The pulsing red light seems almost like a malevolent eye staring back at you. The only other smart l...
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Amelia Singh 36 minutes ago
Pressing the button will set the lamp to turn off in one hour. No other timing adjustments can be ma...
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Charlotte Lee Member
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15 minutes ago
Tuesday, 06 May 2025
The pulsing red light seems almost like a malevolent eye staring back at you. The only other smart light option is a timer with a dedicated timing button.
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Nathan Chen 14 minutes ago
Pressing the button will set the lamp to turn off in one hour. No other timing adjustments can be ma...
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Isaac Schmidt 2 minutes ago
We certainly expected more advanced features from such an expensive desk lamp. We’d be hard-presse...
Pressing the button will set the lamp to turn off in one hour. No other timing adjustments can be made.
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Sophie Martin Member
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68 minutes ago
Tuesday, 06 May 2025
We certainly expected more advanced features from such an expensive desk lamp. We’d be hard-pressed to recommend this light even at half the cost. Lifewire / Jordan Provost
Price Overpriced at any level
With a price ranging between $110-$130, the Youkoyi A509 is among the most expensive swing arm lamps on the market.
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Sophia Chen Member
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90 minutes ago
Tuesday, 06 May 2025
With the added cost we expected a lamp filled with plenty of lighting, extra features, and superior design, but the Youkoyi A509 failed to impress in nearly every category. We’d be hard-pressed to recommend this light even at half the cost.
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Elijah Patel 6 minutes ago
Youkoyi A509 LED Lamp vs Byblight E430
Unless you absolutely need a hooded lamp design w...
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Isaac Schmidt Member
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95 minutes ago
Tuesday, 06 May 2025
Youkoyi A509 LED Lamp vs Byblight E430
Unless you absolutely need a hooded lamp design with a swing arm clamp lamp, you can do far better. Many swing arm clamp lamps are half the cost at around $50-60, with most featuring more color modes and just as many rotational options.
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Amelia Singh 39 minutes ago
The Byblight E430, for example, features four color modes and six brightness levels with a sturdier,...
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Scarlett Brown 33 minutes ago
With only two color modes and almost a complete lack of features, this clamp lamp underperforms at a...
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Alexander Wang Member
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20 minutes ago
Tuesday, 06 May 2025
The Byblight E430, for example, features four color modes and six brightness levels with a sturdier, more modern design, and listed at around $100. BYB E430 LED Lamp Review: Premium Swing Arm Lamp Final Verdict Bulky, flimsy, and unattractive. While we enjoyed the full range of motion provided by the hood lamp and arms, we found the Youkoyi A509’s design bulky, flimsy, and unattractive.
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Dylan Patel Member
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Tuesday, 06 May 2025
With only two color modes and almost a complete lack of features, this clamp lamp underperforms at a grossly inflated price tag.
Specs
Product Name A509 LED Swing Arm Lamp Product Brand Youkoyi MPN A509 Price $126.99 Weight 7.75 lbs. Product Dimensions 29.1 x 4.3 x 4.3 in.
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Nathan Chen 70 minutes ago
Lifespan 36,000 hours Color Temp 3000K, 4200 K Inputs/Outputs AC 100-240v / DC 12V ~ 1A Warranty 2 y...
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Madison Singh 101 minutes ago
Other Not enough details Hard to understand Submit More from Lifewire BYB E430 LED Lamp Review: Prem...
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Mason Rodriguez Member
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Lifespan 36,000 hours Color Temp 3000K, 4200 K Inputs/Outputs AC 100-240v / DC 12V ~ 1A Warranty 2 years Was this page helpful? Thanks for letting us know! Get the Latest Tech News Delivered Every Day
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Other Not enough details Hard to understand Submit More from Lifewire BYB E430 LED Lamp Review: Prem...
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Youkoyi A509 LED Lamp Review: Overpriced and Underperforms Menu Lifewire Tech for Humans Newsletter!...
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Youkoyi A509 LED Lamp Review: Overpriced and Underperforms Menu Lifewire Tech for Humans Newsletter!...