The YiHi SX735J chipset is designed for premium single‑battery devices (18650/20700/21700). It offers multiple modes including Watt, Temp Control, Voltage, and the Exclusive Pure mode designed by YiHi. Despite its advanced features, operation is simple. Power On & Off Power on: press fire button 5 times quickly, logo appears, then main screen. Power off: 5 clicks → main menu → System Off → Shutdown. Lock/Unlock: press fire button 3 times to prevent misfires or child use. Mode Selection From the Mode menu, choose: Watt Mode: adjustable wattage for different atomizers. Temp Mode: Constant (stable) or Dynamic (fluctuating) control; supports Ni200, SS316L, and custom TCR. V.VOL Mode: fixed voltage output. Pure Mode: Exclusive Pure mode designed by YiHi for stable and clean output. Wattage & Flavor Settings In Watt Mode: scroll down → choose Soft, Neutral, Strong, or SXi‑EQ1/2/3. Custom Curves (SXi‑EQ): adjust output every 0.5s, from 50%–200%. In Temp Mode: switch between NORM, COOL, COLD, HOT, WARM, or use SXi‑EQ1 for a custom temp curve. Shortcuts & Features Resistance Lock: when atomizer changes, system asks to use old or new resistance. Brightness: menu → Tweaks → Brightness (10–100%). Screen Timeout: adjustable 15–90s. Temp Units: switch °C / °F. Room Temp Compensation: ensures accurate TC. Puff Counter: lifetime vs daily puffs; daily can reset, lifetime cannot (max 9,999,999). Protections Low Voltage: <3.2V → Low Battery. Short Circuit: output stops immediately. Low Resistance: <0.1Ω → no output. Overcharge: stops at 4.2V ±0.05V. Reverse Polarity: device protected if battery is inserted incorrectly. Key Specs Input Voltage: 3.4V–4.2V Wattage Range: 5–100W (depends on coil)…

(Designed for device makers and DIY lovers, delivering top-tier performance and customization to everyday users.) Large Screen=0.91''OLED=SX600HL Small Screen=0.69''OLED=SX600HS Highlights • Accurate constant power output (±0.5%), adjustable 1W–60W• Supports Power, Voltage, and Temperature Control modes• Ultra-precise resistance detection down to 0.0001Ω• Single lithium battery input, supports external charging board (5V/1.5–1.8A)• Multiple protections: reverse polarity, short circuit, low resistance, overheat, low voltage• Firmware upgrade support for personalized features• Designed for global high-end players and DIY modders, combining power with customization Power & Charging • Power supply: Single lithium battery (max 4.2V)• External charging: Supports 5V/1.5–1.8A module Working Parameters • Standard resistance: 0.10–3.0Ω (Power mode); 0.05–3.0Ω (Temp mode)• Static current: <1µA• Vaping current: Max 20A at 0.15Ω• Output: 1–60W, max 8V Features • Display: battery voltage, output voltage, resistance, power• Protection: reverse, low voltage, overheat, short circuit, low resistance• Screen: 0.69-inch OLED, 96×16 resolution• Temp range: 100–300℃ (212–572℉)• Flavor curves: customizable Power & Temp curves (20 steps)• Firmware upgrade via PC via SXi-tools• 180° screen flip (remove atomizer, hold fire button until “check atomizer,” then press + button) Operation • Power ON/OFF: Press fire button 5 times quickly to turn on/off• Menu & Modes: Press fire button 5 times → use +/– buttons to navigate → confirm with fire button Modes: WATTS, V.VOL, TEMP TEMP mode: choose coil type (SS316L / NI200 / TCR), support resistance setting & TCR customization (0.00050–0.00700)• Power mode: adjust directly with +/– buttons (1–60W)• Temp mode: press + button to adjust wattage, – button to adjust temperature (100–300℃)• Voltage mode: adjust 1.0–8.0V with +/– buttons (limited by…