Godox GN33
Score: 68/100
Ulanzi SL01 Mini
Score: 62/100Rankings
The Godox TT520III provides an affordable, compact flash with 33 m guide number and built-in 433 MHz wireless triggering. It lacks TTL, high-speed sync and a built-in diffuser, limiting its use for advanced lighting setups. Suited for budget-conscious DSLR shooters needing a portable fill flash and basic wireless capability.
The Ulanzi SL01 Mini Flash is an ultra-compact, 33 g manual flash with a GN 8 output and USB-C rechargeable battery. It lacks TTL, wireless and bounce capabilities, making it unsuitable for advanced lighting setups. Best for beginners and travel shooters who need a tiny fill light.
| Attribute | | |
|---|---|---|
33 mbest | 8 m | |
| ↓ lower better | 1.8 secondsbest | 5 seconds |
| ↓ lower better | — | 33 gbest |
— | 250 mAhbest | |
8best | 4 | |
20 mbest | — | |
— | 6,500 Kbest | |
3best | 1 |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(1) | ||
Recycle Time (seconds) | 1.8 seconds | 5 seconds |
Connectivity(1) | ||
Wireless Capability | true | false |
Features(1) | ||
Number of Flash Modes | 3 | 1 |
Battery & Power(2) | ||
Battery Type | AA | Li-ion |
Power Levels (steps) | 8 | 4 |
Design(1) | ||
Dimensions (L×W×H) (mm) | 2.95x7.5x2.15 inches mm | 43x35x28 mm mm |
Lighting(1) | ||
Guide Number (m) | 33 m | 8 m |
Products in the top-left offer the best value (high score, low price).
Professional reviewers praise the SL01 for its unprecedented miniaturisation, high CRI and convenient USB-C charging, positioning it as a budget-friendly entry-level speedlite for beginners and travel shooters. However, they consistently note the lack of TTL, bounce capability and video lighting, which limits its appeal for more advanced or video-centric workflows.
Everyday users celebrate the flash's pocket-size portability, straightforward operation and reliable battery life, especially for social-media content creation. Recurring complaints centre on the manual-only nature, the relatively slow full-power recycle, and the absence of bounce or video-light functions that competitors provide.
“perfect for everyday carry”
“budget flash for creators”
