The Pulsar X2H CrazyLight Medium is an ultra-lightweight wireless gaming mouse from Pulsar Gaming Gears, released in late 2025 as part of their CrazyLight series. Weighing just 43g, it targets competitive FPS players who prioritize minimal weight, fast response times, and claw/relaxed claw grip comfort. Featuring the custom XS-1 sensor (PixArt PAW3950 variant), up to 8K Hz polling support, optical switches, and a symmetrical high-hump design, it aims to deliver elite performance without unnecessary bulk or RGB. This review covers real-world testing and official specs for a balanced look at its strengths and trade-offs.
At A Glance
Weight: 43g (Dot Skates) / ~45g (PTFE skates)
Dimensions: 120.4 × 63 × 38 mm (medium size)
Sensor: Pulsar XS-1 (custom PAW3950) – 32,000 DPI, 750 IPS, 50G acceleration, Motion Sync
Polling Rate: Up to 8K Hz (wireless), adjustable
Switches: Pulsar optical (100M clicks), TTC Golden Encoder scroll wheel
Connectivity: 2.4GHz wireless + USB-C wired
Battery: ~200mAh – days at 1-2K Hz, ~10 hours at 8K Hz
Skates: Pre-installed Dot Skates (UHMW-PE) + bonus PTFE sheet
Price: ~$130
Best For: Claw/relaxed claw FPS players seeking extreme lightness and precision
First Impressions
Unboxing feels premium yet minimalist: a compact eco-friendly box with the mouse, 8K dongle (with extender), flexible USB-C cable, Dot Skates + PTFE replacements, and stickers
The mouse instantly impresses with its feather-like 43g weight—picking it up feels almost weightless compared to heavier competitors
The matte coating grips well without stickiness, and the high hump gives immediate confidence for claw hold
Colors like Jet Black or Uyuni White look clean and premium
Initial glide on hard pads is buttery smooth with the stock dots, though some swap to PTFE for cloth pads. Right out of the box, clicks feel crisp and light, with no pre-travel issues—it's clear this is built for speed
Shape, Coating, and Mouse Feet
The X2H CrazyLight Medium features a symmetrical design with a high, aggressive central hump and steep rear slope for solid palm support, paired with a narrower waist (~60-63mm grip width) for secure finger wrap in claw grips
Compared to flatter X2 models, the higher back provides more natural hand rest, reducing strain during extended play
The shape tapers smoothly, with slight front flares and inward side curves for control without feeling overly wide
The matte ABS coating is grippy and improves with use (less slick after break-in), resisting sweat effectively
Bottom design includes open cutouts for weight reduction (dust can enter but easy to clean)
Stock Dot Skates offer ultra-low friction and "buttery" glide on hard/glass pads, ideal for micro-adjustments; bonus PTFE skates provide more durability and consistency on cloth surfaces. Many users swap skates for personal preference
Recommended Grip Types
Optimized for claw and relaxed claw grips, especially on medium to large hands (17-20cm)
The pronounced hump supports the palm without forcing aggressive arching, while the narrow waist allows fingers to curl securely for precise control
Relaxed claw users praise the natural feel and reduced fatigue. Aggressive claw works well but may feel the hump too steep for some. Fingertip grip is possible on smaller hands but lacks a dedicated rest area
Palm grip is not ideal due to the high hump and lack of full palm coverage—better suited to claw-focused players. Community tests (e.g., 19x10cm hands in relaxed claw) highlight excellent comfort for FPS flicks and tracking
Buttons and Scroll Wheel
Main buttons use Pulsar optical switches rated for 100 million clicks—light, spammable actuation with crisp feedback, minimal pre/post-travel, and zero double-click risk
They're quiet yet tactile, perfect for rapid sprays or spamming in competitive play. Side buttons (ambidextrous) have short pre-travel and solid clicks, great for binds/macros
The TTC Golden Encoder scroll wheel is defined and steppy with moderate tactility—smooth for weapon switches or zooming, without overscroll. Overall, inputs feel premium and responsive, earning high marks for consistency
Build Quality
Despite the ultra-light design, build quality is solid: minimal shell flex, no creaking under pressure, and clean internals (easy modular access for skates/switches)
Optical switches eliminate debounce worries, and the coating holds up to sweat
Open base invites dust but is simple to maintain
Battery is swappable, and firmware updates via software keep it future-proof
Sensor and Everyday Performance
The XS-1 sensor delivers near-flawless tracking: low deviation (~0.1-0.2% error), excellent on cloth/hybrid/glass, adjustable LOD (~1.0-1.2mm), and Motion Sync for jitter-free fast movements
Latency is ultra-low (~1.8ms wireless at 1-4K Hz, ~2.2ms wired)—pro-level for CS2/Valorant. Wireless is stable at 1-4K Hz; 8K Hz shows minor velocity spikes in extreme swipes but remains usable
Everyday use feels snappy and fatigue-free, with buttery glide and precise control. Battery lasts days at lower polling but drains faster at 8K (charge often for max performance)
Driver Updates for Maximum Performance
To ensure your system is optimized for top-tier performance, especially in fast-paced gaming scenarios like those involving the Pulsar X2H CrazyLight Medium, keeping your drivers up to date is crucial
This includes ensuring that your system's network and graphics drivers, in addition to any peripheral drivers like USB or wireless drivers, are always up to date
For a hassle-free, automatic driver update process, consider using Driver Sentry
This tool helps you automatically scan, detect, and update outdated or missing drivers, so you don't have to worry about manually searching for the correct driver versions
Whether it's for your wireless adapter, USB drivers, or even display drivers, Driver Sentry will ensure everything is in top working condition
Alternatives
Razer Viper V3 Pro (~54g): Better battery and more consistent wireless, similar symmetrical shape but heavier
Lamzu Thorn (~52g): Cheaper, similar claw-friendly shape, strong sensor but less extreme lightness
Logitech G Pro X Superlight 2 (~60g): Superior software/durability, but noticeably heavier
Endgame Gear OP1 / WLmouse Beast X — Competitive in lightness/sensor but different shapes
The X2H CrazyLight Medium wins on raw weight and claw optimization if 43g is your priority
Conclusion
The Pulsar X2H CrazyLight Medium is a standout ultra-light mouse for claw-grip FPS enthusiasts in 2026—its 43g weight, elite XS-1 sensor, crisp optical clicks, and comfortable high-hump shape make it a top performer for speed and precision. Minor drawbacks like shorter 8K battery life, occasional high-polling quirks, and dust-prone base are easy to manage. If you're chasing minimal fatigue and lightning-fast response in claw grip, this is one of the best options available. Highly recommended for competitive players—grab it if lightness is king!
