Comparison
Zarya, Perun and Peresvet: how to compare laser systems without trusting headline numbers
The names Zarya, Perun and Peresvet appear constantly in news and search, but they describe different classes of system. Comparing them by power alone is like comparing cars by engine displacement: mass, transmission and the road matter just as much.

Contents
Why power is not the main thingZarya: what to check"Perun": what to check"Peresvet": what to checkChinese laser systems: why they are comparedEight questions for the supplierIn open publications, these systems are discussed as a means of countering drones and optical systems. The exact characteristics, as a rule, are not disclosed. Therefore, a correct analysis is not a retelling of advertising figures, but a set of questions that need to be asked to the supplier and verified in tests.
Why power is not the main thing
Source power is only one of the parameters. The result is affected by beam divergence, spot diameter at distance, tracking quality, retention time, cooling and atmosphere. A laser with more power but a poor spot may lose to a weaker but more accurate complex.

| Parameter | What does it mean | Why is it important |
|---|---|---|
| Power | Source energy | Not equal to energy on target |
| Divergence | Beam angle | Determines spot size |
| Spot in the distance | Energy Density | Decides what will hurt |
| Hold time | Seconds to target | Affects reaction speed |
| Duty factor | Operation/Cooling | Determines the rate of repelling attacks |
| Nutrition | kW from the network | Limits mobility |
Zarya: what to check
In open sources, Zarya is referred to as a mobile laser complex. For the project, it is important to understand: this is a effectors or suppression of optics, what ranges are declared for typical targets and how long the complex operates before pausing. Without this data, the name does not help you choose a system.
"Perun": what to check
"Perun" is discussed as a more powerful stationary or mobile complex. Key issues are power consumption, cooling, weight and platform requirements. If a complex requires a separate substation, it cannot be considered mobile, even if it is transported.
"Peresvet": what to check
“Peresvet” is more often mentioned in the context of strategic objectives, rather than the protection of a civilian object. For procurement, it is important to separate the purpose: a complex designed for other purposes and conditions may be redundant or inconvenient for the perimeter. The name does not replace the project.

Chinese laser systems: why they are compared
On the international market, Chinese laser systems compete on price, delivery time and integration. When comparing, it's important to consider not only power, but also support, training, parts, and compatibility with existing optics. A cheap complex without service may turn out to be more expensive.
In addition, export procedures and restrictions may affect timing. This factor needs to be checked before the tender, and not after signing the contract.
Eight questions for the supplier
- What is the spot at a distance of 1 km and 2 km?
- How many seconds does it take to hit a typical target?
- What is the duty cycle and cooling time?
- What is the power supply and requirements for the generator?
- What is the laser safety and blocking class?
- How does the complex integrate with radar and EPS?
- Are there field tests in rain and fog?
- Who provides service and training in the country of operation?
