ThruNite TH20 Pro vs Zebralight H600d Mk IV size comparison
The Zebralight H600d Mk IV is 17.8 mm (0.70 in) longer than the ThruNite TH20 Pro, and 2.2 mm wider at its widest point.
The Zebralight H600d Mk IV is 17.8 mm (0.70 in) longer than the ThruNite TH20 Pro, and 2.2 mm wider at its widest point.
Dimensions
| ThruNite TH20 Pro Check price ↗ | Zebralight H600d Mk IV Check price ↗ | |
| Length | 80 mm (3.15 in) | 97.8 mm (3.85 in)+17.8 mm |
| Head / width | 22 mm (0.87 in) | 24.2 mm (0.95 in)+2.2 mm |
| Body | 20 mm (0.79 in) | — |
| Weight | 58 g listed | — |
| Battery | 14500 | 18650 |
| Max output | 1,010 lm | — |
| Throw | 141 m | — |
| Type | Headlamp / right-angle | Headlamp / right-angle |
| Price | not verified yet | $99.00 at zebralight.com, as of Nov 4, 2026 |
| Source | batteryjunction.com sourced | zebralight.com sourced Right-angle headlamp |
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
TH20 Pro vs H600d Mk IV: how they differ
Size and weight
The ThruNite TH20 Pro is the shorter light: 80 mm (3.15 in) against 97.8 mm (3.85 in), a difference of 17.8 mm (18%). At its widest point the ThruNite TH20 Pro is 2.2 mm slimmer (22 vs 24.2 mm).
Brightness and throw
The ThruNite TH20 Pro is rated at 1,010 lm; we have no published maximum for the Zebralight H600d Mk IV.
Battery
The ThruNite TH20 Pro runs on a removable 14500 battery; the Zebralight H600d Mk IV runs on a removable 18650 battery. For scale, a 14500 cell is about 14 × 50 mm and a 18650 about 18 × 65 mm (nominal).
Type
Both are headlamps / right-angle lights in our catalog with a right-angle body.
Which should you buy?
Choose the ThruNite TH20 Pro if you want a shorter light (17.8 mm shorter) and a slimmer profile (2.2 mm narrower). On the specs we track, the ThruNite TH20 Pro is ahead or level everywhere; the Zebralight H600d Mk IV makes sense mainly if its price, interface or a feature we don't track suits you better. We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ ThruNite TH20 Pro Check price ↗ Zebralight H600d Mk IV
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
TH20 Pro vs H600d Mk IV FAQ
Which is smaller, the ThruNite TH20 Pro or the Zebralight H600d Mk IV?
The ThruNite TH20 Pro is the shorter light: 80 mm (3.15 in) against 97.8 mm (3.85 in), a difference of 17.8 mm (18%). At its widest point the ThruNite TH20 Pro is 2.2 mm slimmer (22 vs 24.2 mm).
Do the ThruNite TH20 Pro and Zebralight H600d Mk IV use the same battery?
The ThruNite TH20 Pro runs on a removable 14500 battery; the Zebralight H600d Mk IV runs on a removable 18650 battery. For scale, a 14500 cell is about 14 × 50 mm and a 18650 about 18 × 65 mm (nominal).
Compare ThruNite TH20 Pro with similar lights
Compare Zebralight H600d Mk IV with similar lights
More
Sources
- ThruNite TH20 Pro: specs from manufacturer published specs as listed by batteryjunction.com. Drawing: outline from published specs. No verified price yet.
- Zebralight H600d Mk IV: specs from Zebralight product page (manufacturer). Drawing: outline from published specs. Price $99.00 from zebralight.com, checked Nov 4, 2026; prices change often.
Found an error? Email [email protected] and we will fix it.