What is the JKM625-650N-78HL4-BDV?
- Peak power: 625–650 Wp front side, up to 716 Wp bifacial nameplate (BNPI) on the 650 W version
- Bifaciality: φPmax 80 ± 5% — the rear face can add up to about 80% of front-side capability under favourable conditions
- Construction: dual glass, 2.0 mm anti-reflective front, 2.0 mm heat-strengthened rear, 156 half-cells (78×2)
- Efficiency: up to 23.25% front-side, Pmax temperature coefficient −0.29%/°C
- Size and warranty: 2465 × 1134 × 30 mm, 34.0 kg, 12-year product warranty, 30-year performance warranty to 87.4%
The JinkoSolar Tiger Neo 78HL4-BDV is a bifacial dual-glass module rated up to 650 W on the front face, reaching 716 W nameplate when rear-side generation is counted under favourable conditions. Instead of an opaque backsheet, the rear is glass, so the cells also convert light reflected from the surface below. How much that adds depends entirely on what sits under the array: light-coloured concrete reflects far better than dark metal sheet, and modules raised above the surface capture more than modules laid flat against it.
Is bifacial worth it in practice, and when should you choose it?
A bifacial module generates from the rear in addition to the front. The φPmax 80 ± 5% figure quoted by manufacturers describes the rear cells' potential relative to the front — not the gain you will see on every site. Real-world uplift typically lands between a few percent and the low teens, driven by three things: the reflectivity of the surface beneath, the gap between module and surface, and the mounting angle. For Phuket work, bifacial pays off most clearly on elevated structures — steel frames on flat roofs, carports, or factory roofs with a genuine air gap — and where the surface below is light-coloured. On arrays laid flat against dark metal sheet, which describes most local installations, the rear-side gain is small enough that a monofacial module is usually the better value. The other consideration is weight: at 34 kg per module this is heavier than single-glass alternatives, so the roof structure must be verified first.
Highlights from the datasheet
- Rear-side generation: 80 ± 5% bifaciality when the surface below is reflective and the array is mounted with a gap
- Dual glass construction: 2.0 mm front and 2.0 mm heat-strengthened rear glass — more durable than polymer backsheets in constant heat and humidity
- Up to 716 Wp bifacial nameplate: higher capacity per square metre where site conditions favour rear-side gain
- 23.25% front-side efficiency: already high before counting any rear contribution
- −0.29%/°C temperature coefficient: the same heat tolerance as the monofacial Tiger Neo models, better than P-type
- 5400 Pa front load rating and 1500 VDC system voltage: suitable for monsoon wind loading and long string designs
- 30-year performance warranty: 1% maximum first-year degradation, 0.40% per year after, 87.4% at year 30
Key specifications (JKM625-650N-78HL4-BDV)
| Specification | Datasheet value |
|---|---|
| Maximum Power (Pmax) at STC | 625–650 Wp (รุ่นย่อย 625 / 630 / 635 / 640 / 645 / 650 W) ค่าความคลาดเคลื่อนกำลัง 0 ~ +3 % |
| Maximum Power at BNPI (rear 135 W/m²) | 688–716 Wp (รุ่น 650 W = 716 Wp) |
| Module Efficiency (STC) | 22.36–23.25 % (รุ่น 650 W = 23.25 %) |
| Cell Type | N-type Mono-crystalline TOPCon แบบสองหน้า กระจกสองชั้น (Bifacial Dual Glass) กระจกหน้า 2.0 mm เคลือบกันสะท้อน กระจกหลัง 2.0 mm heat strengthened |
| Number of Cells | 156 เซลล์ (78×2 ครึ่งเซลล์) |
| Voltage at Maximum Power (Vmp) | 48.33 V (รุ่น 650 W, STC) |
| Current at Maximum Power (Imp) | 13.45 A (รุ่น 650 W, STC) |
| Open-circuit Voltage (Voc) | 57.60 V (รุ่น 650 W, STC) |
| Short-circuit Current (Isc) | 14.10 A (รุ่น 650 W, STC) |
| Bifaciality Coefficient | φPmax 80 ± 5 %, φVoc 98 ± 5 %, φIsc 80 ± 5 % |
| Temperature Coefficients | Pmax −0.29 %/°C, Voc −0.25 %/°C, Isc 0.045 %/°C |
| Dimensions / Weight | 2465 × 1134 × 30 mm / 34.0 kg |
| Maximum Static Load (Front / Rear) | ด้านหน้า 5400 Pa / ด้านหลัง 2400 Pa |
| Max System Voltage / Fuse / Operating Temperature | 1500 VDC (IEC) · ฟิวส์อนุกรมสูงสุด 30 A · −40 °C ~ +70 °C (Level T98 ≤ 70 °C) · กล่องต่อสาย IP68 · Protection Class II · IEC Fire Type C |
| Product Warranty | 12 ปี |
| Linear Power Warranty / Degradation | 30 ปี — เสื่อมปีแรกไม่เกิน 1 % ปีถัดไป 0.40 % ต่อปี คงเหลือ 87.4 % เมื่อสิ้นปีที่ 30 |
Note: every figure above comes straight from the Jinko Solar Co., Ltd. (จดทะเบียนตลาดหลักทรัพย์เซี่ยงไฮ้ STAR Board รหัส 688223) — บริษัทแม่คือ JinkoSolar Holding Co., Ltd. จดทะเบียน NYSE รหัส JKS ตั้งแต่ปี 2010 datasheet. Actual system design (strings per MPPT, cable sizing, breakers) must be calculated for each site.
Why this model suits Phuket
- Ideal for elevated frames and carports: a common format at Phuket hotels and factories looking to make parking areas productive
- Dual glass handles high humidity: Phuket is humid nearly year-round, and glass-glass construction avoids the long-term moisture ingress risks of polymer backsheets
- Structural weight must be checked: 34 kg per module is heavier than standard; we assess the roof structure first, particularly on older buildings in town
- Salt air: the aluminium frame and IP68 junction box handle coastal conditions, and on seafront sites we specify stainless fixings throughout as standard
Who it suits
- Elevated mounting systems: steel frames on flat roofs, carports, or roofs with a real air gap beneath the modules
- Buildings with light-coloured surfaces below: concrete decks or pale roofing that reflects usefully
- Large factories and warehouses: maximum capacity per square metre with structure capable of carrying the extra weight
- Long-horizon projects: glass-glass construction outlasts polymer backsheets in hot, humid service
- Owners wanting maximum wattage per module: 650 W front-side with rear-side upside where conditions allow
Summary
The Tiger Neo 78HL4-BDV 650W is the highest-wattage module in our line-up, with genuine rear-side upside where the site suits it — elevated frames, carports and light-coloured roof decks. For arrays laid flat on dark metal sheet, which covers most Phuket installations, the monofacial 72HL4-(V) 605W usually delivers better value: similar front-side output, lower weight and lower cost.
See other models from this brand on the Jinko Solar overview, or browse all the equipment we install.
Download the datasheet (PDF) — full manufacturer specification sheet