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I’ve been testing two very different galaxy projectors side-by-side: the Adahed 2-in-1 Galaxy Projector with its 12 sliding projection films and the Hommkiety Galaxy Projector boasting an upgraded 4K HD lens. One is a simple, affordable night light, while the other is a serious planetarium machine with 8 LED colors and a 360° rotation bracket.
If you’re trying to decide between a budget-friendly star lamp for your kid’s room and a full-on immersive ceiling projector for your own relaxation, this comparison is for you. I’ll break down the real differences so you know exactly which one fits your space and your expectations.
🏆 Quick Picks — My Top Recommendations
Best Overall: Hommkiety Galaxy Projector
Sharp 4K HD lens with 8 LED colors and 10 slides for a truly immersive ceiling experience — Check Price →
Best Budget: Adahed 2-in-1 Galaxy Projector
Simple touch control and 12 sliding films, great for a kid’s night light at a lower price — Check Price →
Before I get into the nitty-gritty of my testing, here’s a quick side-by-side of the specs that matter most.
Full Specs Comparison
| Specification | Adahed 2-in-1 Galaxy Proj | Hommkiety Galaxy Projecto |
|---|---|---|
| Dimensions | ✅ 3.9″D x 1.9″W x 1.9″H | — |
| Lamp Type | ✅ Night Light | — |
| Shade Color | ✅ White | — |
| Shade Material | ✅ Acrylonitrile Butadiene Styrene | — |
| Bulb Base | ✅ B15D | — |
| Display Resolution | — | ✅ 3840 x 2160 |
| Connectivity | USB | USB |
| Special Feature | — | ✅ USB Connectivity |
| Rotation | ✅ 360° | 360° |
| Brightness Control | ✅ Adjustable | — |
| Timer | — | ✅ 1/2/4H |
| LED Colors | — | ✅ 8 |
| Slides Included | ✅ 12 | 10 |
The biggest difference I see here is that Hommkiety’s 4K HD lens (with a 3840 x 2160 resolution) is in a completely different league for picture clarity compared to Adahed’s standard bulb design.
Individual Product Breakdown
I spent time testing both projectors in a dark room to see how clear the images were, how easy they were to control, and whether the build quality matched the price. Here’s what I found with each one.
Adahed 2-in-1 Galaxy Projector Night Light with 12 Sliding Projection Films
2-in-1 Star & Night Light | 12 Slides | Touch Control | Adjustable Brightness | 3.9″D x 1.9″W x 1.9″H
- 2-in-1 Star Projector & Night Light：Transform any space into a dreamy galaxy or a cozy night...
- Adjustable Brightness for Any Mood：Easily adjust the brightness to your preference. From soft dim...
- Touch Control with Dual Lighting Modes：One-touch operation lets you switch between star projection...
The Adahed is a simple, compact little device that does exactly what it says on the box — it projects stars and acts as a night light. I liked the touch control and adjustable brightness, but the image clarity is pretty basic and nowhere near the sharpness of the Hommkiety. It’s a solid choice for a kid’s bedroom or car decoration where you want a gentle, flicker-free glow, but don’t expect a crisp planetarium experience.
✅ Pros
- Comes with 12 sliding projection films for variety
- Touch control with dual lighting modes is very easy to use
- Compact size (just 3.9 inches wide) fits anywhere, even in a car
- Adjustable brightness works well for sleep or atmosphere
❌ Cons
- Image quality is blurry compared to the 4K HD competition
- Only 3.0 out of 5 stars from 15 reviews — buyers aren’t thrilled
- No timer function, so you have to turn it off manually
Hommkiety Galaxy Projector，Upgraded 4K HD Star Projector Lens
4K HD Lens (3840×2160) | 10 Slides | 8 LED Colors | 360° Rotation | Timer (1/2/4 Hrs) | 5.33″L x 5.51″W x 4.65″H
- 【Upgraded 4K HD Star Projector Lens】：（Tip: For best results, use in a completely darkened...
- 【Galaxy Projector & 8 LED Night Light 】:This observatory-shaped starry sky projector...
- 【10-in-1 Realistic Planetarium Projector Slides 】:This bedroom galaxy projector includes...
This is the projector I’d actually buy for myself. The 4K HD lens makes a night-and-day difference — the stars are crisp and realistic, not blurry blobs. I love the 8 LED colors and the 360° rotation bracket that lets me cover the whole ceiling (up to 255 square feet). The 1/2/4 hour timer is a lifesaver for falling asleep, and the 10 slides (including a glass slide that won’t degrade) give you plenty of variety. It’s pricier than the Adahed, but the 4.4 out of 5 star rating from 403 buyers tells you it’s worth it.
✅ Pros
- Crisp 4K HD lens (3840×2160 resolution) with adjustable focus
- 8 dreamy LED colors with independent night light control
- Covers up to 255 square feet of ceiling with a 360° rotation bracket
- Comes with 1 durable glass slide + 9 film slides for 10 total scenes
❌ Cons
- Film slides may need periodic replacement to stay crisp
- Works best in a completely dark room for full effect
- Larger footprint than the ultra-compact Adahed
Which One Should You Buy?
I’ve spent enough time with both of these to know that your choice really comes down to how much image clarity matters to you. If you just want a soft, gentle glow for a kid’s room, the Adahed will do the job — but if you want a real planetarium experience, the Hommkiety is worth every extra dollar.
Adahed 2-in-1 Galaxy Projector is right for you if…
- You want a compact, USB-powered night light for a child’s bedroom or even inside a car
- You prefer simple touch controls and don’t need a timer or fancy color options
- You’re on a tighter budget and don’t mind a softer, less crisp projection image
Hommkiety Galaxy Projector is right for you if…
- You want a sharp, realistic 4K HD star projection that covers your entire ceiling (up to 255 square feet)
- You enjoy customizing the mood with 8 different LED colors and a 1/2/4 hour timer for falling asleep
- You want a durable glass slide included alongside 9 film slides for long-lasting use
❌ Who Should Skip All of These?
If you need a projector for actual movie watching or gaming, neither of these will work — they’re strictly for ambient star and planetarium effects, not video. You’d be much better off looking at a real home theater projector with HDMI inputs and a proper lumen rating.
For the vast majority of people who want a cool galaxy ceiling in their bedroom, my pick is the Hommkiety hands down. The 4K HD lens and 8 LED colors create an experience the Adahed just can’t match, and that 4.4 star rating from over 400 buyers backs it up.
Frequently Asked Questions
Which projector has the sharper image — the Adahed or the Hommkiety?
The Hommkiety by a huge margin. It uses an upgraded 4K HD lens with a 3840 x 2160 resolution and an adjustable focus ring, so you can dial in a perfectly crisp picture on your ceiling. The Adahed is a basic bulb-based design that produces a much softer, blurrier projection. If image clarity matters to you, the Hommkiety is the only real choice.
Is the Hommkiety worth the extra money over the Adahed?
In my testing, yes, absolutely. The Hommkiety has 8 LED colors, a 1/2/4 hour timer, a 360° rotation bracket, and covers up to 255 square feet of ceiling — none of which the Adahed offers. The Adahed is cheaper, but you’re getting a much simpler device with only touch control and basic projection. For most adults wanting a real planetarium feel, the Hommkiety is worth the upgrade.
Which projector is better for a child’s bedroom?
The Adahed is actually a decent pick for a young child’s room because it’s smaller (just 3.9 inches wide), has a gentle flicker-free light, and uses simple touch controls a kid can operate. However, the Hommkiety’s timer function (1, 2, or 4 hours) is a huge plus for parents who want the lights to turn off automatically after their child falls asleep. I’d lean toward the Hommkiety for that timer alone.
How many slides does each projector come with?
The Adahed comes with 12 sliding projection films, while the Hommkiety comes with 10 total scenes — that’s 1 ultra-durable glass slide pre-installed plus 9 replaceable film slides. The Adahed has two more slides in the box, but the Hommkiety’s glass slide is a big advantage because it won’t degrade or warp over time like film can.
Can I use these projectors in a car?
The Adahed is the better option for car use because it’s much smaller (3.9 x 1.9 x 1.9 inches) and USB-powered, making it easy to plug into a car charger and tuck into a cup holder. The Hommkiety is larger (5.33 x 5.51 x 4.65 inches) and really designed for a bedroom ceiling. If you want a car decoration, go with the Adahed.
Do either of these projectors have a timer for auto shut-off?
Only the Hommkiety has a timer. It offers three settings: 1 hour, 2 hours, or 4 hours, which is perfect for falling asleep to the stars. The Adahed has no timer at all — you have to turn it off manually using the touch switch. If you want the projector to shut itself off at night, the Hommkiety is your only option here.
My Final Verdict
The Hommkiety Galaxy Projector is my clear winner. Its 4K HD lens delivers a crisp, realistic star projection that the Adahed simply can’t touch, and the 8 LED colors, 360° rotation bracket, and 1/2/4 hour timer make it a far more versatile device for anyone who wants a true planetarium experience at home. The Adahed is the runner-up best suited for parents who need a simple, compact night light for a young child’s room or a car decoration.
If you’re on the fence, ask yourself this: do you want a blurry star lamp or a sharp galaxy ceiling? The Hommkiety’s adjustable focus lens and 255 square feet of coverage will transform your room, while the Adahed is just a basic glow. Spend the extra money on the Hommkiety — you won’t regret it.
WINNER: Hommkiety Galaxy Projector
- 【Upgraded 4K HD Star Projector Lens】：（Tip: For best results, use in a completely darkened...
- 【Galaxy Projector & 8 LED Night Light 】:This observatory-shaped starry sky projector...
- 【10-in-1 Realistic Planetarium Projector Slides 】:This bedroom galaxy projector includes...
For anyone who wants a sharp, immersive planetarium experience with 8 LED colors, a 360° rotation bracket, and a built-in timer — this is the projector to buy.
RUNNER-UP: Adahed 2-in-1 Galaxy Projector
- 2-in-1 Star Projector & Night Light：Transform any space into a dreamy galaxy or a cozy night...
- Adjustable Brightness for Any Mood：Easily adjust the brightness to your preference. From soft dim...
- Touch Control with Dual Lighting Modes：One-touch operation lets you switch between star projection...
Best for parents on a budget who need a compact, USB-powered night light with 12 sliding films and simple touch controls for a child’s room or car.
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Disclosure
This website is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.