LAZER ST-4 EVOLUTION Hybrid Beam Spot LED Lamp. Re-engineered and re-designed for 2017/8, the ST4 Evolution is a hugely versatile LED spotlight the size of which has proved particularly popular within the road tuning, pick-up truck and 4x4 markets. At 204mm length, the ST4 delivers incredible lighting performance which belies its diminutive size. ECE approval ensures the lamp is suitable for full integration into your vehicles existing electrical system. Intelligent current control (soft start ramping), and Pulse Width Modulation deliver extreme luminosity and durability. X1 ST-4 ...